[[quoteright:347:http://static.tvtropes.org/pmwiki/pub/images/Septimus_Heap_-_All_Seven_Covers_2602.jpg]]

The ''Septimus Heap'' series is a series of YoungAdult {{fantasy}} novels written by Angie Sage. Like the ''Literature/HarryPotter'' books, they take place in a rather whimsical fantasy world resembling a sort of mash-up of MedievalEuropeanFantasy and the modern day. Like the Harry Potter books, they do not skimp out on the NightmareFuel for young readers.

One unfortunate evening, an [[BigBad evil wizard]] and his underlings invade the Castle of a peaceful, [[CityWithNoName unnamed nation]]. They murder the Queen and TheArchmage of the Castle, the [=ExtraOrdinary=] Wizard of the time, Alther. On the same night, a family of Ordinary Wizards, the Heaps, down in the castle town awaits the birth of their seventh son, Septimus. His father, Silas, was also a seventh son, meaning that Septimus will have [[MagicalSeventhSon great power]]. But he is pronounced dead by the midwife and ferretted away. Instead, the Queen's newborn daughter is thrust into their arms for them to raise as her own. They name her Jenna, unaware that she's the Princess. But not for long; the Heap family must now protect their adopted daughter from the evil forces out searching for her.

[[TimeSkip Cut to ten years later]] -- and now they've been found out. The Heap family is forced to flee their home to protect Jenna. Along the way, they pick up a quiet young soldier boy "named" Boy 412, who joins them in their hideout deep in the marshes. Just from the title of the series alone, you can probably guess who he ''really'' is. Overjoyed to have finally found his family, Septimus becomes an apprentice to the most (politically) powerful wizard in the world -- and embarks on a slew of adventures with his sister Princess Jenna, his brother Nicko, best friend Beetle, and [[LoadsAndLoadsOfCharacters many, many others]]. But plenty of ills lurk in the world, wanting to get their hands on either his innate mystic power or his sister's political worth. Including one ''distressingly'' close to home...

The series consists of seven books, the final title having been published in April 2013:

* ''Magyk''
* ''Flyte''
* ''Physik''
* ''Queste''
* ''Syren''
* ''Darke''
* ''Fyre''

An eBook novella, ''The Darke Toad'', and a guidebook, ''The Magykal Papers'', are also available.

A film for ''Magyk'' has been considered since 2007, but casting has not yet begun. In 2012, a major step forward was reported when Warner Bros. purchased the film rights to all seven titles in the series, including the final title, ''Fyre''.

Beware of unmarked spoilers. Compare with ''Literature/{{Discworld}}''.

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!!This series provides examples of:

* AbandonedWarehouse: The Port is filled with these warehouses, many the products of the stern Port Customs Office impounding goods and then never get the customs money paid. One of these in ''Physik'' has the time travelling Glass.
* AbandonShip: In ''Syren'', when the ''Cerys'' gets overrun by the warrior jinn, Milo Banda and the others tries to evacuate the ship. He ends up having to use Jim Knee-turned-into-a-turtle as a liferaft because the rest of his crew escape with the ''Marauder'' before they can join them.
* AbsentMindedProfessor: Marcellus Pye, especially in ''Queste'', for example by constantly forgetting the reason for Septimus’s visits. Explained as a consequence of his age (about 500 years).
* [[AbsurdlySpaciousSewer Absurdly Spacious Rubbish Chute]]: The one which Marcia and co. use in ''Magyk'' to escape from the Wizard Tower.
* AbusiveParents: Queen Etheldredda. Marcellus openly states that Etheldredda would prefer her hunting dogs to him.
* AcceptableProfessionalTargets: Wizards and Witches are often mocked or plainly distrusted InUniverse.
* AChildShallLeadThem: Jenna is 10 years old when she is called to be Castle Queen. Her coronation, however, isn't until she's 14 during ''Fyre'', which is a significant plot point in ''Darke''.
* AchillesInHisTent: Septimus runs off in a huff from the camp in ''Syren'', after Jenna has expressed denial at his sighting of ''Cerys''.
* ActionGirl: Quite a few. Jenna is an on-and-off example, but Snorri is also pretty good.
* AdjectiveAnimalAlehouse: The Grateful Turbot Tavern.
* AdultsAreUseless: [[PlayingWithATrope Played with]]. Most of the adults characters ''aren't'' useless per se, but the kids are usually the ones who get the important stuff done, and there's been more than one occasion where the adults contribute to problems by refusing to listen to the kids.
* AdvancingWallOfDoom: The Darke Domaine. If you get trapped in it, you’ll be knocked unconscious. And you'll ''stay'' unconscious until the Darke Domaine disappears. Due to it being a few nights before the yearly Big Freeze, some people froze to death because the Darke Domaine got them while they were out shopping.
* AerithAndBob: The Septimusverse features such normal names as Sam and Simon along with more unusual ones as Etheldredda and Septimus.
* AfraidOfBlood: Merrim Meredith is afraid from blood, especially his own, which leads him to fight back in ''Magyk''.
* AfterTheEnd: Possibly.
** ''Syren'' has characters discuss old stories about men flying to the moon in white tubes. Later, a relatively modern submarine is encountered, and a tower holds what seems to be a modern elevator, with a light that shows a down-pointing arrow when you, well, go down. The books also talk about Roman temples, and make constant references to real world places, like Peru, China, and Persia.
** ''Fyre'' adds more fuel to the, er, fire of this theory. Septimus writes the date on the snow outside [[spoiler: the House of Foryx]]. It's... quite surprising, to say the least.
* AgeWithoutYouth: Without the help of a seventh son of a seventh son, Marcellus Pye’s formula gives him this, making him plan to kidnap such a child from a time 500 years in the future. His plan succeeds, and in ''Queste'', Marcellus looks like a man in his late 20's. He's still over 500 years old, though.
* AgonyOfTheFeet: It is mentioned that Spit Fyre likes to do that with people, so that Jenna cautions Wolf Boy against getting too near when they're fetching the dragon.
* AllThereInTheManual: The back of each book has snippets from the Manual in it, explaining the backstories of several minor characters. There's also a full-color illustrated "manual" of backstory and worldbuilding for the series, titled ''The Magykal Papers''.
* AllWitchesHaveCats: Both Aunt Zelda and the Port Witch Coven have cats, even though Zelda’s cat Bert takes the form of a duck to live better in the Marram Marshes.
* AmbitionIsEvil: [[spoiler:Simon Heap is aiming to become [=ExtraOrdinary=] Wizard. When he’s stepped over in favour of Septimus, he’s turns to [=DomDaniel=] to get his wish.]] It doesn’t work out.
* AMillionIsAStatistic: In ''Darke'', the deaths of many castlepeople are only addressed in passing.
* AnachronismStew: Especially in ''Syren'', which features such things as submarines and elevators.
* AncientAstronauts: The tale of the submarine that flew to the Moon in ''Syren'' is clearly a reference to this.
* AnimalAssassin: Queen Etheldredda uses her Aie-Aie as one of these, with his infectious bite.
* AntiMagic: The Darke Vortex that [=DomDaniel=] uses to incapacitate Marcia Overstand in ''Magyk''.
* ApatheticCitizens: The inhabitants of the Castle rarely care about even plot-critical and Castle-spanning events like the Supreme Custodian taking over the Castle.
* ApocalypseHow: The Outbreak of the Darke Domaine in ''Darke'' leaves a considerable amount of Castle inhabitants dead.
* ApocalypticLog: Syrah Syara's diary ends with her reminding herself who she is while succumbing to the Syren's possession.
* ApronMatron: Sarah Heap becomes this in ''Darke'', keeping the peace between Septimus and Simon in the Heap home and keeping the place in order.
* ArbitrarySkepticism:
** In Queste, Sarah does not believe in her son's Time Travel.
** In Syren, Septimus has a hard time of convincing Jenna and Beetle of the Syren's existence.
* ArcNumber: 7.
* ArtEvolution: Illustrator Mark Zug's images of the characters have become progressively more mature over the series, following CharacterDevelopment.
* ArtifactOfDoom:
** The Questing Stone, since it has allegedly the power to take over the minds of its owners. [[spoiler:Drawing the Stone was however originally intended to be an honour rather than a bad thing.]]
** The Two-Faced Ring. It grants its wearer immense Darke power, but once it's put on, [[ClingyMacguffin it never comes off.]] Ever. [[UpToEleven Even if the wearer dies.]] But there is one way to remove the Two-Faced Ring. It's called "the Other Way", and it involves [[{{Fingore}} cutting off the finger that the Ring is on]] and removing it that way.
* ArtifactTitle: Inverted -- Septimus Heap isn't even called ''by name'' until the very last chapter of the first book. In fact, as [[spoiler: Boy 412]] he plays a ''secondary'' role to Jenna and Nicko for most of the first book.
* AssholeVictim: No one feels particularly sad when [[spoiler:Jillie Djinn]] dies. [[spoiler:She was very nasty to Beetle and largely to blame for Merrin's actions through her employing of him in the Manuscriptorium.]]
* {{Atlantis}}: The Isles of Syren are described to be the leftover of a sunk land.
* AttackOfTheTownFestival: The '''Darke''' outbreak in ''Darke'' occurs right during Septimus's and Jenna's birthday and Longest Night.
* AuthorAppeal: Angie Sage likes shoes. A lot. Often the first thing she describes about a character is footwear, in highly elaborate detail.
* AYearAndADay: An often-seen deadline across the books, e.g. a wizard enters a contract as an apprentice for seven years and a day.
* BabiesEverAfter: [[spoiler:For Simon and Lucy Heap.]]
* BackForTheFinale: ''Fyre'' involves many of the major and minor characters from pervious books. It's not quite a ContinuityCavalcade, but it's close.
* BadassNormal: Jenna Heap, despite not having '''Magykal''' powers, did knock the Toll-Man and Jakey Fry down in ''Queste'' and ''Syren'' respectively.
* BanOnMagic: The Supreme Custodian attempted to enforce one in the Castle, without much success.
* BarrierBustingBlow: This is how Septimus Heap gets kidnapped in ''Physik'': Marcellus Pye pulls him through a mirror.
* BarrierMaiden: The safety of the Castle depends upon Jenna’s presence in it.
* BeCarefulWhatYouWishFor: {{Lampshaded}} with Marcia becoming [=ExtraOrdinary=] Wizard, since she wished it all the time and it eventually became true... by Alther being shot on the day she became EOW: "Beware what you wish for, lest it come true"
* BecomingTheBoast: Septimus lies about "almost" knowing a spell; later he has to scramble to make the spell work for real.
* BeneathTheEarth: The '''Darke Halls''' are subterranean hiding holes for '''Darke''' creatures.
* BeQuietNudge: Happens several times, including an example from ''Syren'' where Jenna yanks at Lucy Gringe's cloak to tell her to be quiet while they are deciding upon how to take the ship ''Cerys'' back from Theodophilus Fortitude Fry.
* BerserkButton: Don't try to kill Septimus or else Jenna will take you down.
* BigBad: [=DomDaniel=] in ''Magyk'' and ''Flyte'', Queen Etheldredda in ''Physik'', Tertius Fume in ''Queste'' and ''Syren'', [[spoiler:Merrin Meredith]] in ''Darke'', and [[spoiler:the Two-Faced Ring]] in ''Fyre''.
* BigFancyCastle: Jenna’s Palace is absolutely enormous, to the point that the Long Walk, which crosses the Palace’s forefront, is referred to as being mile long, and most rooms in the palace are unoccupied.
* BigLabyrinthineBuilding: The Palace. It’s said to contain many secret rooms.
* BirthDeathJuxtaposition: PlayedWith, since Jenna is rescued by Marcia just as the Queen dies, and she is adopted by the Heaps just as ''their'' child dies. [[spoiler:Or so they thought.]]
* BoardingParty: Septimus, Jenna, Beetle, Lucy Gringe and Wolf Boy board the ''Cerys'' in order to save their friends and relatives, stealthily.
* BoldInflation: '''Magykal''' words and terms are written in '''bold''' in some editions. They can also be identified by their XtremeKoolLetterz spelling. For some reason, though, this is absent in ''Darke''.
* BookBurning: That is what is done to '''Magyk''' books by the Custodian guards.
* BoxingLessonsForSuperman: ''Physik'' is partially about Septimus learning to become a Physician while trapped in a Time past. This becomes useful upon his return to his Time to control an epidemic.
* BrainwashingForTheGreaterGood - How the heroes deal with the Hunter in the first book. And they're particularly nasty about it, giving him memories of a horrible backstory where no one loved him and he was constantly the victim of misfortune and stupid mistakes. When Jenna tries to soften it by giving the Hunter a dog who was his only friend, Nikko cuts her off by adding that the "dog" died. The Hunter ends up working as a buffoon in the circus.
* BreakingOutTheBoss: [[spoiler:Simon Heap]] is breaking out [=DomDaniel=] to take over the Wizard Tower and give him the [=ExtraOrdinary=] Apprenticeship.
* BumblingDad: Silas Heap.
* CainAndAbel: In ''Flyte'', [[spoiler:Simon Heap is hunting down his younger brother Septimus and trying to eliminate him, to get the [=ExtraOrdinary Apprenticeship=].]]
* CallingTheOldManOut: Jenna does this to Milo Banda, her father who's always absent, in ''Syren'':
-->'''Jenna Heap:''' "And you are ''not'' my father. Dad is".
* CallingYourAttacks: Many, though not all spells work like this, like when Marcia Overstrand in ''Magyk'' tells [=DomDaniel=] to disappear into the Marshes.
* CannotCrossRunningWater: '''Darke Magyk''' and its creatures don't cross saltwater - especially flowing or tide-influenced one - well.
* CapitalLettersAreMagic: '''Magykal''' words are always capitalized.
* CassandraTruth:
** In ''Flyte'', only Beetle and Nicko trust Septimus when he tells them that Jenna has been kidnapped by Simon Heap.
** Jenna tries in vain to warn Septimus of the upcoming Darke Domaine in ''Darke''.
* CatsHateWater: The reason why Bert, Aunt Zelda's cat, became a duck.
* ChangelingFantasy: Jenna, the only daughter of the Heap family, after ten years of living within the Heap family is revealed to be the daughter of the Queen and heir of the Castle. She had been adopted by the Heaps after the Queen was shot and Marcia Overstrand only barely managed to rescue Jenna from the Assassin sent out to kill them.
* CharacterTitle
* [[CatGirl Cat Man]]: Miarr in ''Syren''.
* ChekhovsGun: The green rock Septimus finds in book one is [[spoiler:a dragon egg]].
* ChekhovsGunman: Syrah Syara. She's mentioned in the epilogue of ''Queste'' [[spoiler:and becomes a major character in ''Syren'']].
* ChekhovMIA: Wolf Boy/Boy 409 is mentioned in ''Magyk'' as having been lost in the river, but he's later reintroduced as survivor in ''Flyte''.
* ChestInsignia: Septimus Heap wears a pentagram, a symbol of '''Magyk''', imprinted on his tunic.
* ChestOfmedals: The Supreme Custodian is depicted as this.
* ChildrenForcedToKill: In ''Queste'', [[spoiler:Septimus and Jenna are forced to throw the [=InHabited=] Toll-Man into the Abyss to escape from the [[OurZombiesAreDifferent Thing]] that is controlling his body.]]
* ChildMage: Septimus Heap is an adolescent who has the makings of becoming a powerful wizard one day.
* ChildSoldiers: The Young Army in the first book. Septimus (back when he was known as Boy 412) was an Expendable, which, unfortunately, was ExactlyWhatItSaysOnTheTin.
* {{Chronoscope}}: Mirrors that work like this are mentioned.
* CityWithNoName: The Castle is never referred to by name.
* ClockKing: Jillie Djinn. She's always punctual to the ''seconds'', and expects everyone else to be.
* ClosedCircle:
** In ''Magyk'', Draggen Island is the Closed Circle, preventing Silas from returning and also [[BigBad [=DomDaniel=]]] from arriving.
** Syren island in ''Syren''.
** The Heaps' room in ''Darke''.
* CloseKnitCommunity: The Ramblings.
* ClothesMakeTheSuperman: Witch cloaks are the main source of a Witch novice's '''Magykal''' abilities, including protection from the '''Darke''', [[spoiler:as experienced by Jenna in ''Darke''.]]
* [[CobwebOfDisuse Cobwebs of Disuse]]: Jenna's Palace is filled with cobwebs, mostly due to the staff being overwhelmed by the sheer size of the Palace and only a few parts being truly used.
* ColorCodedWizardry: Wizardry is color-coded: Purple is used by the [=ExtraOrdinary=] Wizards and their Apprentices, while bright green is associated with other Magyk.
* CombatTentacles: These are the main weapons of The Grim. The Task of Keeper's Apprentices entails cutting off part of these tentacles.
* ContrivedCoincidence: By absolutely ''pure coincidence'', Boy 412 happened to be stationed at the mage tower the night they were fleeing, and just happened to be taken in due to being frozen in the snow.
* ConvenientEscapeBoat: Both the ''Muriel'' and the small boat on the Royal Barge are used in this fashion by the main characters.
* CoolBoat: The ''Cerys'', sporting among others ventilated safe rooms, lots of fancy equipment etc.
* CoolCrown: The True Crown. Made from the gold of the spiders of Aurum, it was withold by Queen Etheldredda from her daughter Esmeralda and only taken back by Princess Jenna five hundred years later.
* CoolGate: The [[ExactlyWhatItSaysOnTheTin Great Door Of Time]].
* CordonBleughChef: Aunt Zelda is, erm, "renowned" for her boiled cabbage sandwiches, jellied eel stew, and haddock-and-banana pie. Only Septimus is a fan of her cooking, but it seems to be NostalgiaFilter for him. All of her dishes are perfectly edible, if rather odd-sounding.
* [[CityWithNoName Country With No Name]]: The queendom in which the series takes place is never officially named. The closest thing to a name it has is given in ''Syren'', where Septimus sends a letter there and calls it "The Small, Damp Country Across the Sea". The map in the sixth book also calls it that, so maybe, as odd as it sounds, that is its real name.
* ContrivedCoincidence: So the protagonists flee the city, and on their way they pick up a half dead ChildSoldier. Turns out, [[spoiler: he's the Heaps' long lost son.]]
* CoolHorse: Thunder.
* CoolOldLady: Aunt Zelda, being the Keeper of Draggen Island.
* CrazyPrepared: Though not in the usual sense -- Epheniah Grebe, who can't speak, has a box filled with ''hundreds'' of cards, apparently written to apply to any occasion, including one written just for the off-chance that he somehow meets the Queen ("Greetings, Your Majesty"). When his cards fail him, he resorts to a pen and paper.
* CreepyDoll: The House of Dolls is filled with [[ReplacementGoldfish these]], to the point that even the protagonists find it creepy.
* DamselInDistress[=/=]DistressedDude[=/=]BadassInDistress: [[OnceAnEpisode Once a book]].
** In ''Magyk'' Marcia is captured by [=DomDaniel=]'s supporters and rescued by Jenna, Nicko, and Septimus.
** In ''Flyte'' Jenna is taken to [=DomDaniel=]'s Observatory by Simon in order to kill her [[SubvertedTrope but escapes on her own before Septimus and Nicko can rescue her]].
** In ''Physik'' Septimus is taken to Etheldredda's and Marcellus's [[TimeTravel time]] and rescued by Jenna, Nicko, and Snorri.
** In ''Queste'' Nicko and Snorri, who didn't make it back in the last book, have escaped to the House of Foryx and are rescued from there by Septimus, Jenna, and Beetle.
* DarkestHour:
** ''Queste'': When Septimus is taken away from Jenna and Beetle in the House of Foryx.
** ''Darke'': After Jenna has told Septimus about Sarah being trapped in the [[SphereOfDestruction Darke Domaine]], he is completely broken.
* DarkWorld: The Darke Halls in ''Darke'' are basically this.
* DeaderThanDead: All people become ghosts when they die. Except [[spoiler:Etheldredda]], who is killed with a dragon fire-based spell, and [[spoiler:[=DomDaniel=]]], who is eaten by Spyt Fyre.
* DealWithTheDevil:
** ''Flyte:'' [[spoiler:Simon Heap]] with [=DomDaniel=] about the [=ExtraOrdinary=] Apprenticeship.
** ''Queste:'' Merrin Meredith with Tertius Fume about a Thing and sending Septimus onto the '''Queste'''.
** ''Syren:'' Joe Grub, later Theodophilus Fortitude Fry, with Tertius Fume about gold.
* DecemberDecemberRomance: Alther and Alice Nettles, with bonus points awarded for [[spoiler:them finally getting together as ''ghosts'', once they're already dead]].
* DeepSleep: Septimus once sleeps so deeply as to forget Spit Fyre.
* DemonicPossession:
** [[spoiler:What the Syren does to Syrah.]]
** '''Things''' have this as one of their standard abilities. In ''Queste'', this first happens to Hildegarde Pigeon and then to the Toll-Man.
* DesertedIsland: The Isles of Syren, which also double as [[TownWithADarkSecret Islands with a Dark Secret]].
* DesignatedBullet: There is a magical significance to a named bullet, and sooner or later it will always find its target. [[spoiler:The catch, as one assassin finds out, is that this doesn't necessarily mean the target will be shot with it.]] The way the bullet is named is important too -- [[spoiler:if the bullet is named 'I.P.', nothing stops it from killing Iona Pot (aka Alice Nettles) instead of the Infant Princess]].
* {{Deuteragonist}}: Jenna Heap. Especially in ''Physik'' she does get the major plot-driving role.
* DidntSeeThatComing: ''Magyk'': This is [=DomDaniels=] reaction when Marcia reveals that the Apprentice the Heaps have just saved is actually him.
* DiedHappilyEverAfter: Ghosts are a common sight in this universe, so it's quite common to meet your deceased loved ones and find out they're quite OK. This is especially the case in ''Physik'', [[spoiler:where Alther and Alice are TogetherInDeath]].
* DieOrFly: In ''Darke'', Septimus must try the '''Flyte''' spell without its charm in order to escape from Dungeon Number One, and succeeds at it.
* DisappearedDad: So the Queen was killed... but what happened to Jenna's biological father? [[spoiler:He's still very much alive, but he's been away for most of her life hunting treasure. They reunite in ''Flyte'', and he attempts to bond with her ([[YoureNotMyFather somewhat disasterously]]) in ''Syren'']].
* DiscreetDiningDisposal: With Aunt Zelda's food, many people try to dispose of it, by feeding it to dogs, hiding it behind their cutlery, showeling it into their pockets, and allegedly by hiding away in the attic with an excuse and conjuring better food up with '''Magyk'''.
* DismantledMacGuffin:
** The '''Paired Codes''', the main MacGuffin in ''Darke'', don't work at all if they're split. Finding the Manuscriptorium part of the Code is a main plot point.
** The Shadow-Safe in ''Flyte'' will only work as a Shadow-Safe [[spoiler:and as a DeathTrap engineered by [=DomDaniel=]]] when it is complete, [[spoiler:and it gaining completeness is the prelude of the climax of ''Flyte''.]]
* DisneyVillainDeath: Subverted, since [=DomDaniel=] actually survives his jump from the Wizard Tower.
* DistressBall: [[spoiler: Sarah Heap in ''Darke'' runs back into the Palace after her duck and is overrun by the Darke Domaine mostly so that Simon can rescue her later]].
* DistressedDude: Septimus in ''Physik''.
* DoesThisRemindYouOfAnything:
** The Custodian Youth -- and especially their Tell-Tale hour -- is very similar to the Hitler Youth groups in Nazi Germany.
** The Heap family seems [[Literature/HarryPotter oddly familiar]].
* DontGoInTheWoods:
** The Forest is filled with carnivorous trees, wolverines, and nasty witches and not a place to enter without caution. [[spoiler: Septimus and Nicko get almost killed in ''Flyte'' in this Forest]].
** [[spoiler: The Low Countries in ''Queste'' are also implied to be dangerous.]]
* DontTouchItYouIdiot: This is about Alther's reaction to Jenna touching the [[spoiler: time-travelling]] Glass. Needless to say, she does touch it, [[spoiler: falls into it and ends up in a time 500 years before.]]
* DontYouDarePityMe: Jenna Heap doesn't exactly approve of being pitied by Hildegarde after her mother Sarah was trapped in the Darke Domaine. In fact, she runs away just to get rid of her.
* DoomyDoomsOfDoom: The main antagonist in the first two books is called [=DomDaniel=].
* DoorDumb:
** In ''Queste'', Septimus and Beetle are trying to push a snow-blocked door open. Jenna proposes to open it on her own, and she does it simply by pulling the doorhandle, opening the door.
** Also happens in ''Syren'', but with a bulkhead hatch and in [[AlmostOutOfOxygen far more urgency]].
* DragonInChief: [[spoiler:Simon Heap serves this purpose in ''Flyte'' on behalf of [=DomDaniel=], who is still only a pile of bones.]]
* DragonRider: [[spoiler:Septimus gets a dragon named Spit Fyre in ''Flyte''. You're ''supposed'' to ride them if they've bonded with you, or else they're somewhat unstable]].
* DramaticThunder: The battle between ''The Vengeance'' and the Dragon Boat occurs during a thunderstorm that was engineered by [=DomDaniel=].
* DreamingOfThingsGoneBy: Silas and Sarah Heap dream of Nicko and Snorri as the latter are walking across a snow-covered forest ... 500 years before.
* DreamingOfThingsToCome: Septimus dreams of his impending kidnapping in ''Physik''.
* DroppedABridgeOnHim:
** [[spoiler:[=DomDaniel=]]] simply, suprprisingly and unceremoniously disappears after [[spoiler:his bones were consumed by Spit Fyre]] in ''Queste''.
** Ditto for [[spoiler:Jillie Djinn]] in ''Darke'', [[spoiler:who expires standing up on Marcia's sofa a moment after the climax, without getting much attention.]]
* DudeNotFunny: InUniverse: Nicko Heap often gets criticized for this, having an habit of not understanding the seriousness of a situation.
* EarthAllAlong: [[spoiler:The TwistEnding of ''Fyre''.]]
* EyeColorChange: The eyes of a Wizard child will slowly turn bright green as they are exposed to Magykal learing.
** An early clue that Jenna is a cuckoo in the nest of the Heaps is that she looks very different, including eyes that remain stubbornly violet rather than changing like her brothers'.
** At the end of ''Magyk'', Sarah Heap notices that [[spoiler:Septimus's]] eyes are becoming green when she identifies him as her child.
* FamilyUnfriendlyDeath: The series employs some decidedly family-unfriendly ways to die, of which [=DomDaniel=] melting down in a pool of slime or Merrin Meredith being reduced to a hollow skin are probably the worst.
* {{Fingore}}: There's only one to get that two-faced ring, which can never go off the same way it went on, away from Merrin Meredith...
* FirstEpisodeSpoiler: [[spoiler: Septimus Heap is Boy 412.]]
* FourLinesAllWaiting. All the books have two parallel-running plots that eventually merge into a single one.
* FreeRangeChildren: Probably not so unusual for a medieval society such as this, but given how Jenna is the Princess, Septimus is the Extraordinary Apprentice, and Beetle becomes the [[spoiler:Chief Hermetic Scribe]], and they've all been within a hair's breadth of being killed, you'd think the adults would start to rein them in a bit.
* GenderBender: Before he became a genie, Jim Knee was a woman. It's implied that occasional GenderBending is par for the course for genies.
* GettingCrapPastTheRadar: In ''Syren'', Septimus is given a Water Gnome, which is basically a Magykal watering can. Beetle notes that it's different from the rude ones he usually sees. At first this can just fly over your head as [[SirSwearsalot swearing]] inanimate objects (God knows ''Franchise/HarryPotter'' has enough of them), but once you take into consideration that it's a ''watering can'', it can easily be interpreted as [[{{Squick}} something far worse]]. Not a pretty thought when you're watering your plants.
* GoodGuyBar: The Hole In The Wall tavern, where several meetings of the characters occur.
* HappilyAdopted: Jenna, and she doesn't like any implication that the Heaps are not her "real" family.
** In an odd way, Septimus is treated by the siblings as the adopted child more than Jenna ever was.
* HeelFaceRevolvingDoor: [[spoiler:Simon. He's a good guy in the first book, the antagonist of the second book, a non-entity in the third, in the fourth he's grudgingly back to being a good guy, and by the time the fifth comes along, he's back on the '''Magykal''' straight-and-narrow]].
* HonoraryUncle: Aunt Zelda to Wolf Boy
* HopeIsScary: When Boy 412 realizes that for the first time in his life, he has more Good Things than Bad ones, he is afraid because it means the possibility of loss.
* IdenticalGrandson: In ''Physik'' Jenna is often confused with her distant ancestor Esmeralda.
* ImplausibleDeniability: When Marcia, Nicko, Jenna, Boy 412 and Silas hide from the Hunter in magical fog the Hunter says that they have nothing to fear.
* ItTastesLikeFeet: In ''Fyre'', Septimus thinks that the ghost of Alther Mella would feel that flying through the heavy wind was like being Passed Through by pixies with boots on, though "How Alther knew what being Passed Through by pixies with boots on was like, Septimus had no idea."
* ItWasADarkAndStormyNight: The beginning of ''Darke'': "It is a '''Darke''' and stormy night."
* IWillOnlySlowYouDown: In ''Flyte'', Septimus insists in Nicko running away without him from the wolverines that are following them after he tripped and twisted his ankle. Nicko doesn't listen and gets trapped along with Septimus.
* {{Jerkass}}: Merrin Meredith.
* JokerImmunity: [[spoiler:Averted. [=DomDaniel=] is [[KilledOffForReal So Utterly Obliviated He Doesn't Even Leave A Ghost]] in ''Queste'', since he wasn't fully killed when falling from the Wizard Tower.]]
* LastNameBasis: Beetle is only known as "Beetle", since his full name is "O. Beetle Beetle". He was named this because his mother was told that his father (a man named Brian, but everyone, even his wife, called him Beetle) had died just as Beetle was born. When asked for the name of her newborn son, Beetle's mother was half-mad with grief, and could only cry out "Oh Beetle! Beetle!" The people there took that as his name, for some reason.
** Foxy is another example. It's not until ''Fyre'' we learn that his first name is "William".
** Wolf Boy is horrified when he learns his real name for the first time and finds out that his first name is "Mandy." He decides that he wants to be known as "Marwick."
* LighthousePoint: The light from [=CattRokk=].
* LimbSensationFascination: A millipede is transformed into the shield bug that will eventually belong to Jenna. There's a passage narrating what it feels like for him to lose his many precious legs and instead find himself with just six, complete with fingers. He considers hands useless and clumsy, though he does get used to it.
* LIsForDyslexia: Silas is implied to be dyslexic in the first book's epilogue.
* LikeBrotherAndSister: Septimus and Jenna. Well, Jenna and all the Heap brothers, obviously, but her relationship with Septimus stands out, since the WordOfGod constantly mentions their brotherly connection (starting with the second book).
* LoadsAndLoadsOfCharacters: ''Are there ever!'' Even the incredibly minor characters have backstories. The 2009 guidebook provides information on a lot of them.
* LoopholeAbuse: In ''Fyre'' [[spoiler:the ghost of Jillie Djinn makes a major pest of herself. Unfortunately for Marcia Overstrand, Jillie died on her sofa, and the rules of ghosthood state that a ghost must spend a year and a day in the place where they died. Jillie continues to drive Marcia nuts until Hotep-Ra presents a simple solution-- since Jillie Djinn is entirely on the sofa, all that's necessary is to remove the sofa from the study.]]
* LostTechnology: ''Syren'' displays quite a bit of it, and it is even called "Beyond ''Magyk''."
* MassiveNumberedSiblings: There's a whole heap of Heap children. Discussed in-book as well, when Snorri asks, "How many brothers do you have?!"
* [[MagicAIsMagicA Magyk A is Magyk A]]: '''Magyk''' has very specific rules that it must follow.
* MatterOfLifeAndDeath: In ''Flyte'', this is thrown around twice.
* MicroMonarchy: The Castle.
* MistakenForBadass: Merrin was thought by [=DomDaniel=] to be Septimus Heap, who was the seventh son of the seventh son that was said to have extreme magical talent, so [=DomDaniel=] took Merrin in as an apprentice waiting for the talent to arise. It turns he was switched with the real Septimus at birth, so no such talent reveals itself. Merrin doesn't take this well.
* MistakenForCheating: When Sally Mullin sees Silas and Marcia fleeing from the Custodians she thinks they are eloping. Sally also thinks Jenna was conceived by Sarah in an affair (as Jenna is secretly adopted she doesn't look like Silas or Sarah).
* MistakenForQuake: In ''Queste'', the loud shaking of the Toll-Man's hut that Jenna first thought was an earthquake turns out to be a pack of Foryx running past the hut.
* NeverTheSelvesShallMeet: Downplayed in ''Fyre''. [[spoiler: Septimus meets his several-years-older self in the House of Time. He is so shocked that he is rendered completely speechless. Future!Septimus sees that this is for the best, since telling him anything more than the most basic information (like "Marcia is fine. Don't worry.") will cause [[TemporalParadox all sorts of problems]]. Future!Septimus also has memories of ''this very meeting'', musing that he was wondering when he would meet up with his younger self. After Present!Septimus calms down a bit, Hotep-Ra sends him on his way, quipping that "we will meet again...as you have just seen."]]
* NewPowersAsThePlotDemands: New powers, myths, and BoldInflation terms tend to show up in every book. Since the world itself is pretty big and expansive, this is somewhat {{justified|Trope}}.
* NiceJobBreakingItHero:
** [[spoiler: Simon unleashing the '''Darke Domaine'''.]]
** Septimus [[PoorCommunicationKills not listening to Jenna]].
* NoGoodDeedGoesUnpunished: Saving Merrin doesn't make him like you. [[spoiler:In fact, it doesn't stop him from trying and nearly succeeding to kill you all.]]
* NoHuggingNoKissing: There are a number of implied love interests all around ([[spoiler: Septimus and Syrah, Jenna and Beetle, and Nicko and Snorri]]), but little comes of them on-screen. Even the few {{Official Couple}}s are not very detailed.
* NotSoHarmlessVillain: [[spoiler:Merrin Meredith]] in ''Darke''.
* TheNotLoveInterest: Septimus is Jenna's not love interest and vice-versa. Syrah may or may not also be a candidate.
* OccultBlueEyes: All witches have pale blue eyes.
* OfficialCouple: Strangely, Alther and Alice are the only official non-married couple (or to-be-married, as with Simon and Lucy), as the series normally uses NoHuggingNoKissing. Even the second most strongly-implied couple ([[spoiler:Nicko and Snorri]]) are never officially said to be a couple, and [[spoiler:they break up at the end of ''Darke'' when Snorri goes home]].
* OurGeniesAreDifferent
* OurGhostsAreDifferent: Most, if not all, people who die become ghosts. These are tied to the places they visited when they were alive, and while they cannot touch or grab things, they have the limited ability to '''Cause''' things to happen.
* OurWitchesAreDifferent: Witches in the Septimus-verse mostly work with potions and '''Magykal''' items rather than outright spellcasting, and have icy blue eyes. They are often in rivalry with Wizards.
* OutOfFocus: In the very beginning of the first book, at least, we were introduced to Silas and see through his perspective frequently, and it seemed as though he was going to be one of the main characters. But virtually every single Heap besides Jenna, Septimus, Nicko, and Simon are swept away for the vast majority of the series and only get a few scenes at most per book mentioning what they're up to.
* PantheraAwesome: Ullr -- cute kitty in the daytime, badass panther at night.
* PeacefulInDeath: [[spoiler:Alice]] and [[spoiler:Aunt Zelda]]
** [[spoiler: Maxie the wolfhound. At the end of the book, in the "What Happened After" section, he fell asleep surrounded by everyone he loved and simply never woke up again.]]
* PetTheDog: It's said in ''Darke'' that [[BigBad DomDaniel]] once gave a bowl of milk for a stray cat. Semi-justified, as it's mentioned that a Darke witch or wizard can never become ''completely'' evil simply because he or she is human.
* PhantasySpelling: Too many examples to name them all, especially in '''Magyk''' words.
* PrincessesRule: At least for the time being, Princess Jenna is acting as queen without being crowned as one.
* RecurringTraveler: Stanley the rat has a way of popping up where Septimus and Jenna least expect him.
* ReformedButRejected: Simon, [[spoiler:though eventually accepted.]]
* RewardedAsATraitorDeserves: When Simon has told the Supreme Custodian about the location of Zelda's cottage, the Supreme Custodian plans to kill Simon along with the other Heaps.
* RhymesOnADime: Tertius Fume does this to the point of being called out for this by Merrin Meredith.
* [[spoiler: RomanticFalseLead: Septimus spends a lot of time in ''Darke'' checking in on Syrah, who was left in a magic coma, but when she finally wakes up she no longer remembers and actively avoids him, while he starts dating another girl.]]
* {{Room 101}}: Dungeon Number One.
* RunningGag:
** Queen Etheldredda always referring to Jenna as her great-great-great (and then some) granddaughter, which she is as all Queens and their Princesses are directly related. The author, Angie Sage, actually writes "great-great-great and then some" several times in her stories.
** Wizard Sandwiches and the many, many things they don't believe in.
** Hamsters come up a lot in ''The Magykal Papers''.
** Sausages in the Egg-On-Toast Restaurant Guide because of the traumatised assistant's experience with the Meat Pie and Sausage Roll Cart
* SealedEvilInACan: Etheldredda, the BigBad of ''Physik'' has spent 500 years trapped in a [[PhantomZonePicture painting]] before being released.
* SequelHook: ''Fyre'' includes a brief appearance by as well as part of the epilogue mentioning a new character that is to be the central focus of an upcoming series that begins seven years after ''Fyre''.
* ShameIfSomethingHappened: In ''Magyk'' the Hunter threatens to burn Sally Mullin's cafe in that manner before doing so.
* ShootTheBuilder: Builders avoid working for alchemists for this reason.
* ShoutOut: ''Fyre'', the last book, contains at least contains two:
** One is to the ''Literature/HarryPotter'' series, with an Ordinary Wizard named Bertie Bott being among the deceased.
** Another is made by Hotep-Ra, referencing the FamousLastWords of Captain Oats, one of the men on Scott's Antarctic expedition.
--->''Hotep-Ra got out of his chair and said to his Apprentice, Talmar Ray Bell, "I am just going outside. I may be some time."\\
Talmar looked horrified. "Don't say that!"\\
Hotep-Ra smiled at his Apprentice. "Why ever not?"\\
"It's bad luck," she said. "Someone said it once and never came back."\\
"I'll be back," said Hotep-Ra.\\
"Someone said ''that'' once too."''
* ShownTheirWork: The eponymous '''Fyre''' is a reference to a nuclear reactor, and gold held near a fission reaction really will be transmuted into lead by the neutrons flying around.
* SpecialPersonNormalName: In a cast of characters with names like Septimus, Alther, Etheldredda, and Morwenna, the princess of the castle around whom a good deal of the plot revolves is named... Jenna. Somewhat justified in that she was raised in a family of ordinary wizards, but given what they named some of their other children...
* SwitchedAtBirth: Jenna was taken by the Heap family after Septimus disappeared.
* TakingTheBullet: Jenna is haunted all her life by a "named bullet" -- a bullet guaranteed to find the person bearing its name. Initially, it "comes" to her unshot and free of its gun -- she owns it, so it "found" her. However, it's stolen from her and fired. [[spoiler: Alice Nettles takes it, and due to the way the bullet was named, it accepts her as its target.]]
* TakingYouWithMe: When Tertius Fume is banished by Marcia, he touches Alther so that both are banished.
* TalkingAnimal: Stanley the Message/Secret Service Rat. In fact, all message rats can talk, since they convey their messages via voice.
* TechnicolorEyes: Wizards always have green eyes and Witches have blue eyes (bearing in mind that a man or a woman may be a Wizard). All those embroiled in the '''Darke''' have dark eyes. Many heirs to the Castle have violet eyes, as does Jenna, since she has no inherent '''Magyk'''.
* TellHimImNotSpeakingToHim: The message rat Stanley is initially relieved when asked to a job for wizards. Before being asked to deliver his message to the Marram Marshes, Stanley the message rat was stuck delivering messages between two feuding sisters in a situation that had descended into this. His job eventually consisted of simply running back and forth between them and not talking, until finally the sisters' mother was shocked by the huge bill and canceled the service.
* ThemeNaming: All the books in the series have XtremeKoolLetterz in their titles.
* ThoroughlyMistakenIdentity: "Esmeralda".
* TimeAbyss: Jim Knee.
* TogetherInDeath: [[spoiler:Alther and Alice, in what might be considered an ''extreme'' DecemberDecemberRomance]].
* {{Tsundere}}: Marcia is a nonromantic variant -- she's self-centered and abrasive as all get-out, but she very clearly cares deeply for Septimus (when she slips enough to let it show).
* TwistedAnkle: In ''Flyte'', it's a twisted ankle that slows down Septimus to the point that he gets almost taken by the wolverines.
* TyrantTakesTheHelm: Queen Etheldredda [[ExactlyWhatItSaysOnTheTin the Awful]] in ''Physik''.
* UncannyValley: An InUniverse example: Syrah when she's [[spoiler:possessed by the Syren]].
* UnfortunateName: Poor Jim Knee. He got his name through Merrin's mispronounciation of "jinnie", and certainly wasn't pleased about it -- a jinnie of his status shouldn't have such a common name.
* UngratefulBastard: Merrin Meredith.
* UnwittingInstigatorOfDoom: Silas Heap releases Etheldredda from the [[SealedEvilInACan painting]] by opening the locked room where it is.
* VillainExitStageLeft: When Alther exposed [=DomDaniel=] as a necromancer and took the Amulet of Akhu [=DomDaniel=] jumped from the top of the Wizard Tower and escaped into the Abyss.
* WalkingSpoiler: Septimus did not die at birth. [[spoiler:He is Boy 412.]]
* WeWillMeetAgain: When Alther drove [=DomDaniel=] out of the Wizard Tower [=DomDaniel=] said that he would return with the seventh son of a seventh son.
* WhatBeautifulEyes: GreenEyes are often described as this, such as in ''Syren'' where Simon is courted by a few women after falling in the harbour.
* WhosOnFirst: When Beetle asks Foxy who has been picked as Chief Hermetic Scribe and Foxy answers "You", Beetle thinks he means Barnaby Ewe.
* WhyDidItHaveToBeSnakes: {{Justified|trope}} with Septimus's fear from heights, as most powerful Wizards are afraid of heights.
* WhoWouldBeStupidEnough: In ''Syren'' Septimus says that not even Milo would be stupid enough to acquire five thousand warrior jinn without knowing the Codes to control them. Turns out that [[BigBad Tertius Fume]] deceived him into doing so by promising to give the Codes later.
* WildHair: The boys in the woods
* WriteBackToTheFuture: [[spoiler:Septimus]] does this in ''Physik'', and [[spoiler:Nicko and Snorri]] do this in ''Queste''.
* WritersCannotDoMath: Inverted; the ArcNumber 7 and the way it is scattered through the series proves that Angie ''[[DefiedTrope can]]'' [[DefiedTrope do math]].
* XtremeKoolLetterz: '''Magykal''' words and phrases tend to display this.
* AYearAndADay: An often-seen deadline across the books, e.g. a wizard enters a contract as an apprentice for seven years and a day.
* YeOldeButcheredeEnglishe: The titles of the books and most of the terms when they're not XtremeKoolLetterz or PhantasySpelling.
* YouAreNumberSix: Happens to Stanley the message rat after [=DomDaniel=]'s heavies take over the rat office. The new head rat reassigns him as Rat 101 and strips away his chartered confidential status. The members of the Young Army also have numbers instead of names.
* YoureNotMyFather: A variation occurs in ''Syren''. [[spoiler:Jenna ''screams'' this at Milo Banda when he tries to prevent her from going off with Septimus and Beetle. The kicker is that Milo ''is'' her ''biological'' father, but [[DisappearedDad he's been so utterly absent from her life]] that she has no real ties to him]].
* YouSaidYouWouldLetThemGo: Linda starts to pull this on a pair of lovebirds -- both the hostage and the bird who obeyed her for its mate's safety. The Witch Mother stops her, not out of the kindness of her heart (she doesn't have any), but because intentionally breaking a '''Darke''' bargain ForTheEvulz falls right into StupidEvil territory.

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