* Chapter 2:
** '''[[Music/WeirdAl Everything I Believe Is False]]'''[[note]]Based on the song "Everything You Know Is Wrong"[[/note]]
* Chapter 3:
** Bounce Boots ("Made with real Film/{{Flubber}}!")
** [[TabletopGame/DungeonsAndDragons Knives +3! Forks +2! Spoons with a +4 bonus!]]
** [[Literature/TheWonderfulWizardOfOz goggles that turn anything you look at green]]
* Chapter 4:
** "J. K. Rowling is watching you from where she waits, eternally in the [[VoidBetweenTheWorlds void between worlds]]."
* Chapter 6:
** Harry purchases [[Literature/{{Discworld}} Rincewind's]] Luggage.
** [[Franchise/BackToTheFuture "Great Scott!"]]
* Chapter 7:
** [[Theatre/AVeryPotterMusical Harry is wearing an exercise band to hide his scar while he's on the train.]]
* Chapter 8:
** "[[Film/TwoThousandTenTheYearWeMakeContact All these worlds are J. K. Rowling's, except Europa. Attempt no fanfics there.]]"
* Chapter 9:
** "[[AllYourBaseAreBelongToUs All your base are belong to J. K. Rowling.]]"
** Sally-Anne Perks is sorted before Harry as in canon; in reference to [[http://www.fanfiction.net/s/6243892/1/The-Strange-Disappearance-of-SallyAnne-Perks this fic]], she is described as "a pale waifish girl who looked oddly ethereal - like she might mysteriously disappear the moment you stopped looking at her, and never be seen again or even remembered." Sure enough, she makes no further appearances.
** Sorting Hat song is a reference to Series/MontyPythonsFlyingCircus Lumberjack Song sketch.
* Chapter 12:
** "[[Franchise/CthulhuMythos ph'nglui mglw'nafh J. K. Rowling wgah'nagl fhtagn]]"
** Quirrel channels [[Franchise/StarWars Darth Vader]] when he addresses the students of Hogwarts with "Perhaps I can find new ways to motivate you."
* Chapter 13:
** "[[Creator/JRRTolkien Elen sila J. K. Rowling omentielvo.]]"
** “Trying to navigate the halls of Hogwarts was like... probably not quite as bad as wandering around inside an Creator/MCEscher painting, that was the sort of thing you said for rhetorical effect…" “A short time later, Harry was thinking that in fact an Escher painting would have both pluses and minuses compared to Hogwarts.”
** Many of the phrases which the painting of the elderly lady says to Harry are drawn from the [[Literature/AlicesAdventuresInWonderland Cheshire Cat]].
** One of the notes written to Harry by the Game Controller is a reference to Franchise/TheHitchhikersGuideToTheGalaxy: "Ten out of ten for style, but minus several million for good thinking."
* Chapter 14:
** "[[Literature/TheChroniclesOfThomasCovenant Melenkurion abatha! Duroc minas mill J. K. Rowling.]]"
** In reference to [[https://hayseed42.wordpress.com/2014/06/27/getting-the-hang-of-thursdays-0122/ this fanfic]], Harry says "And if someone bumps into me the Time-Turner will not break and will not trap the whole castle of Hogwarts in an endlessly repeating loop of Thursdays."
* Chapter 15:
** "[[Literature/KushielsLegacy Love as thou Rowling.]]"
* Chapter 16:
** "[[Literature/EndersGame The enemy's gate is Rowling.]]"
* Chapter 17:
** "[[Characters/BabylonFiveVorlonEmpire You have always been J. K. Rowling.]]"
** The cube saying "blorple, blorple, blorple" in Dumbledore's office is a reference to the Infocom text-adventure game "Spellbreaker."
** [=McGonagall=] discusses the recent disastrous employments of two Defense professors, [[Literature/AnitaBlake Professor Blake]] (who was caught with THREE fifteen-year-olds in a broom closet) and [[Series/BuffyTheVampireSlayer Professor Summers]] (who failed to teach material correct in the ''Harry Potter'' universe).
** Dumbledore apparently owns a [[Literature/{{Lensman}} Lens of Civilization]], the HolyGrail (specifically, the version of it featured in ''Film/IndianaJonesAndTheLastCrusade''), and the [[Film/TheMalteseFalcon1941 Maltese Falcon]].
* Chapter 18:
** "[[ClarkesThirdLaw Any sufficiently advanced J. K. Rowling is indistinguishable from magic.]]"
** Harry sees a [[Literature/{{Lensman}} Zabriskan Fontema]] and a [[Webcomic/UserFriendly large dust ball with eyes and feet]] preserved in jars in the Potions dungeon.
* Chapter 19:
** "[[TabletopGame/Warhammer40000 Blood for the blood god! Skulls for J. K. Rowling!]]"
** Harry quotes UsefulNotes/WinstonChurchill.
** One evil individual mentioned in passing is named Mornelithe Falconsbane, a reference to the dark wizard who is the main villain of Mercedes Lackey's Mage Winds trilogy.
** Quirrell mentions a list he made that is suspiciously similar to the EvilOverlordList.
** In a demonstration of a martial arts fight, one of the combatants tries to [[Film/TheKarateKid sweep the other's leg.]]
* Chapter 20:
** "[[Literature/ChroniclesOfTheKencyrath That which can be destroyed by the Rowling should be.]]"
** We learn that [[TabletopGame/DungeonsAndDragons mindflayers]] were exterminated by Literature/HaroldShea. This matches with the original making allusions with historical wizards.
** Both ''[[Manga/DeathNote The Tragedy of Light]]'' and ''WesternAnimation/{{Gargoyles}}'' appear to be children's stories in the Wizarding World, the latter of which is meant to teach young Slytherins about a cunning businessman (unnamed, but assumed to be [[TropeNamer Xanatos]]).
* Chapter 21:
** "[[Characters/DiscworldDeathAndCompany Rowling is whoever does Rowling's job.]]"
** ''Occlumency: The Hidden Arte'' is not a text that appears in the HP canon, but it was featured in [[Fanfic/HarryPotterAndTheNightmaresOfFuturesPast this fanfic]] before it turned up here.
* Chapter 22:
** "[[Literature/TheVorGame The key to strategy is not to choose a path to J. K. Rowling, but to choose so that all paths lead to a J. K. Rowling.]]"
* Chapter 23:
** "[[Music/TheyMightBeGiants Everybody wants a rock to wind a piece of string around J. K. Rowling.]]"
** Harry makes an analogy involving an invisible dragon that is taken almost verbatim from ''[[Creator/CarlSagan The Demon-Haunted World]]''.
** '''''[[Literature/{{Dune}} "Gom jabbar!"]]'''''
%% Don't put "And then Janet was a Squib" here, it's not an example.
* Chapter 24:
** "[[{{Literature/Dragaera}} J. K. Rowling coils and strikes, unseen; Orca circles, hard and lean.]]"
* Chapter 25:
** "[[Franchise/StarTrek To seek out new life, and J. K. Rowling!]]"
* Chapter 26:
** [[http://www.gocomics.com/calvinandhobbes/1995/01/09 Yakka foob mog. Grug pubbawup zink wattoom gazork. Chumble spuzz J. K. Rowling.]]
** Professor Quirrell appears to be reading one of the [[Literature/{{Dragonlance}} Spellbooks of Fistandantilus]].
** Several of the irresponsible and dangerous acts of Harry from the original books are pointed out
*** A sixth-year Gryffindor student casts a curse at a sixth-year Slytherin student, not knwoing what it does, only knowing it is to be used against one's enemies.
*** Harry himself uses "don't brew high-level potions without supervision in a bathroom" as an example. In the original books he brew polyjuice just like that.
* Chapter 27:
** [[http://dresdencodak.com/2009/01/27/advanced-dungeons-and-discourse/ J. K. Rowling is 87% confident you will burst into flames.]]
** [[Literature/TheDemolishedMan Mr. Bester]] is the [[Series/BabylonFive Legilimens]] hired to train Harry. Harry creates an alternate persona in his mind to try to foil Bester's Legilimency; this persona is Kimball Kinnison of the ''Literature/{{Lensman}}'' series.
** The Herbology class is studying [[Literature/HumanxCommonwealth furcots]].
* Chapter 28:
** Dumbledore mentions a magical prodigy from Wizarding history named [[Literature/TheBlackCompany Dorotea Senjak]].
* Chapter 29:
** "[[Film/TheMatrix Unfortunately, no one can be told who J. K. Rowling is. You have to see her for yourself.]]"
** An offhand comment is made about a girl (Tonks) who can magically turn her hair bright red (not orange, red) who, upon splashing her tea on herself, [[Manga/RanmaOneHalf briefly became a black-haired boy]].
** The comment about Bill thinking he was an old man who'd gone back in time to 'fix things' is a joke about PeggySue fanfics.
* Chapter 30:
** "[[Creator/CordwainerSmith J. K. Rowling if a man tries to bother you, you can think blue, count two, and look for a red shoe.]]"
** Harry wants to name his team [[Literature/EndersGame Dragon Army]] but Draco claims priority, so Harry goes with '[[NamesToRunAwayFromReallyFast Chaos Legion]]'. [[TabletopGame/{{Warhammer 40000}} The]] appropriate shout-outs are swift to follow.
** "'[[Film/ANewHope Red Five standing by]],' said Dean Thomas, [[IAlwaysWantedToSayThat who'd waited his entire life to say it]]."
** Literally that entire speech was one long streak of references.
* Chapter 32:
** The wizard in the crowd in Diagon Alley wearing a formal top hat and bath-robes sounds suspiciously like ''Literature/{{Chrestomanci}}''.
* Chapter 33:
** "[[Literature/Quarantine1992 I just recite to myself, over and over, until I can choose sleep: It all adds up to J. K. Rowling.]]"
** "[[Anime/TengenToppaGurrenLagann Lagann]]" is the incantation for the "Breaking Drill Hex"
** Harry, an army commander at the age of 11, [[Literature/EndersGame scolds his army for not abandoning their previous notions of gravity.]]
** "What if she's an ex-Hermione?" references the [[Series/MontyPythonsFlyingCircus Dead Parrot sketch.]]
* Chapter 35:
** Harry says he would evacuate all the wizards to Mars should a war break out between wizards and Muggles. Guess where the magic world in ''[[Manga/NegimaMagisterNegiMagi Negima]]'' is.
** "[[Literature/{{Illuminatus}} Imposition of order equals escalation of chaos.]]" The presence of, ultimately, a ''quintuple agent'' is probably a reference to the same work.
* Chapter 38:
** A reference to the Ministry passing a marriage law is likely a reference to the Marriage Law challenge which has spawned a whole category of Hermione/Snape fanfiction. It generally involves the Ministry banning pureblood marriages, to improve the gene pool, and allowing purebloods to force muggleborns into marriage arrangements. This one, however, proposes to ban all marriages, mirroring the reaction of several people when they first hear of the concept.
* Chapter 39:
** Dumbledore taps his fingers [[PocketDimension through]] a black plate inscribed with the word "Leliel," a reference to the 12th Angel from ''Anime/NeonGenesisEvangelion''.
* Chapter 43:
** We learn that Harry plans to become an Animagus so he can turn into a [[Literature/AWizardOfEarthsea peregrine falcon]]
** [[Theatre/HenryIVPart1 "Why an otter?"]]
* Chapter 46:
** Harry gives Hermione a letter that contains the answer to a mysterious question sealed with wax [[Franchise/TheHitchhikersGuideToTheGalaxy inscribed with the number 42]].
* Chapter 47:
** A reference to the founders of Hogwarts fighting [[Literature/TheChroniclesOfThomasCovenant Lord Foul]].
** Harry extinguishes his light with the word ''dulak''; the typical word for extinguishing light is ''nox'', Harry instead used the word the Raistlin Majere used to darken the Staff of Magius in the ''Literature/{{Dragonlance}}'' series.
** [[Film/WillyWonkaAndTheChocolateFactory Mr. Avery]] -- maybe; Avery actually is the name of a Death Eater in canon (which could be a shout-out by J. K. Rowling, or not -- it's a reasonably common English surname).
** The [[Theatre/RomeoAndJuliet Montagues]] -- Montague is likewise the name of one of the Slytherin quidditch players in canon, so if it's a shout-out, it's more likely attributable to J. K. Rowling than to Eliezer Yudkowsky.
** To test [[spoiler:his Patronus,]] Draco sends Harry the message, [[http://www.giantitp.com/comics/oots0377.html "beware the green monkey,"]] "a sign from [[Webcomic/TheOrderOfTheStick a play Draco had once seen.]]"
** The kinds of aliens Harry suggests to Draco that humanity might eventually encounter resemble two species that humans run into in EY's novella ''Literature/ThreeWorldsCollide''.
---> So my version of the thought, Draco, is that when we go out into the stars, we might find other people there. And if so, they certainly won't look like we do. There might be things out there that are grown from crystal, or big pulsating blobs...
* Chapter 49:
** Harry read a book called ''[[http://en.wikipedia.org/wiki/Speak_%26_Spell_(toy) Spell and Speak]]''.
** [[Recap/SouthParkS5E4ScottTenormanMustDie Tenorman's family chili]] and [[Film/SoylentGreen green lentil soup]] (served with [[AGlassOfChianti a glass of]] ''[[Literature/TheSilenceOfTheLambs Chianti]]'', natch).
** In the Quirrell's list of rules, rule thirty-four is "Become Animagus", i.e., learn to turn into a snake. This is another shout-out to the EvilOverlordList, there rule thirty-four is an inversion of this: "I will not turn into a snake. It never helps."
** "[We will test in] ''[[Film/TheRing sseven dayss]]''.
* Chapter 51:
** Quotes the first two lines of Music/TomLehrer's song "Be Prepared," a callback to Harry quoting the song to explain why he needs to be CrazyPrepared to [=McGonagall=] in Chapter 6 (see also SecondVerseCurse below).
-->"I am going to be in Ravenclaw. And if you really think that I'm planning to do something dangerous, then, with respect, you don't understand me at all. I don't like danger, it is scary. I am being prudent. I am being cautious. I am preparing for unforeseen contingencies. Like my parents used to sing to me: "Be prepared! That's the Boy Scout's marching song! Be prepared! As through life you march along! Don't be nervous, don't be flustered, don't be scared -- be prepared!" (Harry's parents had in fact only ever sung him those particular lines of that Tom Lehrer song, and Harry was blissfully unaware of the rest.)
** Harry's password includes the Marx brothers' "[[ThePasswordIsAlwaysSwordfish Swordfish]]," "[[Literature/TheLordOfTheRings friend]]" from the ''Lord of the Rings'', and "[[Literature/TheLordOfTheRings melon]]" (well, "mellon"), the Elvish word for "friend."
** Mary's Room, where Harry and Professor Quirrell have been having lunch, is in [[Literature/CallahansCrosstimeSaloon Mary's Place, owned by "Jake,"]] which suggests that the "huge genial Irishman" whose entrance allows Harry to slip out the door unnoticed is probably Mike Callahan. Also an [[http://www.reddit.com/r/HPMOR/comments/19w4am/today_i_discovered_that_marys_room_is_an_obscure/c8s9em7 unintentional]] reference to the thought experiment "[[http://en.wikipedia.org/wiki/Marys_room Mary's room]]."
* Chapter 52:
** "To take the first step on the road that led to [[Literature/{{Lensman}} Kimball Kinnison]] and [[Characters/StarTrekTheNextGeneration Captain Picard]] and [[Characters/ThunderCats1985 Liono of Thundera]] and definitely ''not'' [[Characters/{{Dragonlance}} Raistlin Majere]]."
* Chapter 54:
** An auror mentions fighting [[Literature/HeraldsOfValdemar Madam Tarma]] as a first year Auror trainee.
** Auror Li has a son named [[Literature/BridgeOfBirds Kao]].
** The Aurors are playing [[Literature/MythAdventures Dragon Poker]].
* Chapter 57:
** ''"[[Film/ArmyOfDarkness All right, you primitive screwheads! Listen up!]]!"''
*** "This ... is ... my ... BROOMSTICK!"
** Also the Dementors are referred to as [[TabletopGame/DungeonsAndDragons spheres of annihilation.]]
* Chapter 61:
** The [[http://en.wikipedia.org/wiki/The_Eyes_of_the_Overworld Eye]] [[http://en.wikipedia.org/wiki/Eye_of_Vecna of]] [[Creator/JackVance Vance]]. Possibly ''Film/{{Primer}}'' in the discussion of time travel.
* Chapter 62:
** ''Literature/SilverOnTheTree'' alludes to the story of another 11-year-old English fantasy hero.
* Chapter 63:
** [[Literature/TheSundering Urulat]]
** [[Manga/AhMyGoddess Verdandi]]
** [[Film/ThePrincessBride Iocane Powder]] (which, of course, is thought to be in one of two flasks)
** [[IdiotBall "Bahl's Stupefaction"]]
** the phrase [[Webcomic/CollegeRoomiesFromHell "Maximum Fun Location"]]
** ''VideoGame/RobotUnicornAttack''
** [[Film/ReturnOfTheJedi "a furry creature like a small child, holding a peculiar flat spear"]]. (The small furry creature may be a [[Literature/LittleFuzzy Fuzzy]] and not an [[Film/ReturnOfTheJedi Ewok]]; the "peculiar flat spear" is more distinctive of Fuzzies than Ewoks.)
** Hermione gives one to the Immortalist agenda when Harry declares he'd rather die than forget Calculus.
---> '''Hermione:''' "Why… why would you ever want to do that?"
* Chapter 65:
** [[Literature/TheChroniclesofNarnia Peter Pevensie]] is a former student of Hogwarts.
* Chapter 67:
** "In the high reaches of Hogwarts where rooms and corridors changed on a daily basis, [[Literature/{{Discworld}} where the territory itself was uncertain]] [[https://en.wikipedia.org/wiki/Map–territory_relation and not just the map]]..."
** "We're the Grey Knights of [[TabletopGame/{{Warhammer 40000}} Chaos]]," said Neville's voice.
** Hermione intends to emulate Franchise/{{Superman}}. [[spoiler:It doesn't work as planned.]]
** Daphne Greengrass and Neville Longbottom basically summon [[Franchise/StarWars lightsabers]]. They ''deflect'' spells.
--->And finally she grasped her wand in both hands and shrieked, "[[LaserBlade ''Lucis Gladius'']]!"
--->she slashed out with her blade of light like it was a Beater's bat, and ''hit the stunbolt back at Harry'' who just barely managed to twist out of the way.
** The incantation for the above spell can be translated as "[[WesternAnimation/ThunderCats1985 Thunder]]! [[WesternAnimation/HeManAndTheMastersOfTheUniverse1983 Gray skull]]! [[Anime/{{Voltron}} Blazing Sword]]!"
* Chapter 69:
** Daphne's title Greengrass of... Frolicking Woodland Creatures is allusion to [[WebAnimation/HappyTreeFriends Happy Tree Friends]][[note]]possibly a RecursiveTranslation of the German version of the show's title, "Fröhliche Baumfreunde"[[/note]] and Sparkly Unicorn Princess is to, well, [[WesternAnimation/MyLittlePonyFriendshipIsMagic sparkly unicorn princesses]]. "Sparklypoo" is a reference to a famous fan comic in which this fifth house of Hogwarts existed to hold all of the over-the-top MarySue fan characters.
* Chapter 70:
** Former students named [[Literature/VorkosiganSaga Miles Naismith]] and [[Literature/EnchantedForestChronicles Cimorene Linderwall]] are mentioned, as is an evil "Professor [[Series/BarneyAndFriends Barney]]." [[note]]Yudkowsky confirms that it's a reference to the [[DarkFic demonic Jihad to Destroy Barney]] version.[[/note]]
** Later edited to replace Miles with [[Literature/TheCurseOfChalion Lupe Cazaril]]. Yudkowsky says that this is because Miles Vorkosigan is [[CelebrityParadox already attending Hogwarts]].[[note]]And because apparently some people complained about SciFi references in a fantasy novel. Which makes one wonder if they even read the previous 69 chapters.[[/note]]
* Chapter 72:
** Hermione manages to utter [[Literature/MythAdventures "Gleep?"]]
** Lavender's "hero outfit" from the play ''[[Franchise/SailorMoon Chronicles of the Lunarian Soldiers]]''.
* Chapter 73:
** Someone casts the spell [[Literature/TheDemonPrinces "Cluthe!"]]
** Another casts [[Literature/{{Slayers}} "Elmekia!"]]
** Someone else cries out the words to [[VideoGame/BaldursGate Abi-Dalzim's Horrid Wilting.]]
* Chapter 74:
** [[Series/BuffyTheVampireSlayer "Acathla, mundatus sum"]]
** [[Literature/DilvishTheDamned "Mabra, brahoring, mabra"]]
** [[Creator/DrSeuss "Shuffle, duffle, muzzle, muff. Fista, wista, mista-cuff."]]
** [[Franchise/HellRaiser "Lemarchand, Lament, Lemarchand,"]]
** [[TabletopGame/{{Warhammer}} "Khornath! Slaaneth! Nurgolth! TZINTCHI!"]]
** [[Anime/{{Slayers}} "Darkness beyond darkness, deeper than pitchest black. Buried beneath the flow of time..."]]
** [[Literature/{{Dragonlance}} "From darkness to darkness, your voice echoes in the emptiness,"]]
** [[VisualNovel/FateStayNight "Unknown to death, nor known to life."]]
** [[Creator/HPLovecraft "You who know the gate, who are the gate, the key and guardian of the gate:"]]
** [[{{Film/Beetlejuice}} "Harry James Potter-Evans-Verres! Harry James Potter-Evans-Verres! HARRY JAMES POTTER-EVANS-VERRES!"]]
** Harry wrote the above chant to imply the ritual sacrifice of the [[Franchise/CthulhuMythos Outer God, Yog-Sothoth]].
** During the 'ritual,' Tracey and the girls are protected by an [[Anime/NeonGenesisEvangelion AT-Field]].
--->for the short moment before the bolts struck and vanished upon a dark red octagon that appeared in the air around the girls, and then disappeared a moment later.
** Professor Quirrell refers to a ritual that uses two of the components of the Seething Death wizardry from Literature/TheLegendsOfEthshar, and also shares another unfortunate characteristic with that uncontrollable weapon of mass destruction:
--->"Even so, the most terrible ritual known to me demands only a rope which has hanged a man and a sword which has slain a woman; and that for a ritual which promised to summon Death itself - though what is truly meant by that I do not know and do not care to discover, since it was also said that the counterspell to dismiss Death had been lost."
** And finally, at the end, Tracy gets all [[Fanfic/MyImmortal goffik]].
* Chapter 75:
** Several Ravenclaw girls describe Hermione and Harry's relationship as being like a play they saw, which they describe thusly: "Oh, I was thinking of this really romantic one where this [[Manga/AhMyGoddess really nice, sweet boy makes a floo call only he mispronounces his destination]] and stumbles out into this room full of Dark Wizards [[Webcomic/OwMySanity who are performing a forbidden ritual that should've stayed forever lost to time, and they're sacrificing seven victims in order to unseal this ancient horror which is supposed to grant somone a wish if it's freed, so of course the boy's presence interrupts the ritual , and as the horror is eating all the Dark Wizards and everyone is dying the boy's last thought is that he wishes he could've had a girlfriend...]]" you get the idea.
** "...distant voices crying [[Literature/TheNarrativeOfArthurGordonPymOfNantucket 'Tekeli-li!']] [[Literature/AtTheMountainsOfMadness 'Tekeli-li!']]"
* Chapter 78:
** mentions Venus Fire Traps from ''VideoGame/SuperMarioBros3''
** Harry yells "Tunafish!" before [[spoiler:triggering the flashbombs the Chaos Army had created using the energy stored in acorns]]. This is drawn from Nick Pollota's "Bureau 13" novels, in which the protagonists, a team of troubleshooters belonging to a secret government agency created to counter paranormal threats, use the same signal when they [[spoiler:set off the flashbombs in their wristwatches]]. This becomes such a signature move for them that they refer to themselves in the later books as 'Team Tunafish'.
* Chapter 79:
** Quirrell claims to have been in [[VisualNovel/FateStayNight Fuyuki City]], Japan in 1983.
** Harry quotes [[http://www.enterpriseintegrators.com/flint/4thR/TomSmithsIncredibleBreadMachinePoem.txt Tom Smith and his Incredible Bread Machine]] "The rule of law, in complex times, has proved itself deficient; we much prefer the rule of men, it's vastly more efficient..."
* Chapter 81:
** People falsely believe that Merlin "fought the dread [[Anime/MyNeighborTotoro Totoro]] and imprisoned [[Fanfic/NobodyDies the Ree.]]"
* Chapter 85:
** Harry's internal monologue explicitly quotes characters from Literature/TheChroniclesOfAmber, VisualNovel/FateStayNight, and [[Creator/JohnMFord Web of Angels]].
** [[Franchise/{{Superman}} "It wasn't a plane. …It was a bird."]]
* Chapter 86:
** One of the gossiping students mentions [[Webcomic/{{Homestuck}} moirails and auspisticing]].
** During the discussion witnessed by Lavender, Dean and Seamus, Chloe mentions that [[Series/{{LOST}} even the trees look like they're shaking]], [[EpilepticTrees like they're afraid]].
** In their duel, Mad-Eye Moody wordlessly fires seventeen [[Manga/NegimaMagisterNegiMagi Sagitta Magica]] to take down one of Harry's cloaked Time-Turned selves.
** While we're at it, Moody mentions that he once tracked down a young Japanese man who attempted to fool him with [[Anime/{{Naruto}} shadow replicas.]]
** In the same chapter, Moody mentions using the Killing Curse on one [[ComicBook/{{Watchmen}} Gerald Grice, whose victims included a girl named Blair Roche.]] His descriptions on how one has to "want" the curse to work are highly reminiscent of Rorschach's mental breakdown and his subsequent murder of Grice.
** There is also a character called [[Literature/{{Discworld}} Mad Drongo]] in this chapter, although he goes by Adrian Turnipseed.
** Quirrell is suspected to be [[spoiler: a man called David Monroe, an inspiring figure throughout the last war. But he's not Less Wrong's OC; the character shares a name and reputation with one from nonjon's fic ''A Black Comedy''. This David Monroe turns out to be a Tom Riddle created when the Diary horcrux ate Neville Longbottom; Quirrell/Monroe is Voldemort in disguise, after coming back from Albania. Perhaps the Diary was there in the Methods-verse? Both Monroes are at one point called 'the next Albus Dumbledore', too.]]
* Chapter 87:
--> '''Harry''': "Sir Gareth, owner of a transportation company that won the 19th-century [[invoked]][[ShipToShipCombat shipping wars]]... monopoly on [[OT3 oh-tee-threes]]... I see."
--> '''Harry''': "I wonder if there's an official name for that in the literature? Like the [[Film/ThisIsSpinalTap 'turned up to eleven effect']], maybe?"
* Chapter 88:
** The title of this two-chapter sequence may refer to the second book of Creator/SpiderRobinson's Death Killer Trilogy, a seminal work of transhumanist/immortalist science fiction.
** Lunch in the Great Hall of Hogwarts on April 16, 1992 consists of [[Series/BabylonFive breen and Roopo balls]], the latter of which were also served at Mary's Place in chapter 26. ''Both'' items, in Babylon 5, were noted as being indistinguishable from Swedish meatballs, of which every culture with whose cuisine G'Kar was familiar had a version.
* Chapter 89:
** The Weasley Twins need to use fire spells in order to [[spoiler: fight the troll which has got in]]. One uses the canon ''Incendio''; the other uses ''[[Literature/DresdenFiles Fuego]]''.
* Chapter 90:
** Quirrell offers to try and help Harry to [[spoiler:resurrect Hermione]], mentioning that he knows [[Film/RevengeOfTheSith "magics that some might consider to be unnatural"]].
* Chapter 94:
** When Harry is persuading Neville not to feel guilty for [[spoiler: Hermione's death]], he inverts the lesson of [[{{Manga/Naruto}} Kakashi's bell test]]:
--> '''Harry''': It's true that in this chaotic world, soldiers who can only follow rules and regulations are worthless. However, soldiers who follow rules for the sake of protecting their friends are -
--> '''Neville''': Slightly better than worthless?
--> '''Harry''': ''Significantly'' better than worthless.
* Chapter 95:
** Quirrell makes a passing reference to Shambling Bone-Men, creatures from a children's story in [[http://www.fanfiction.net/s/4068153/1/Harry-Potter-and-the-Wastelands-of-Time Harry Potter and the Wastelands of Time.]]
** Later on, Quirrell makes a very small reference to stories in which wizards have attempted to resurrect the dead. Among others, he mentions the [[Manga/FullmetalAlchemist Elric brothers]], the drama of [[Anime/MagicalGirlLyricalNanoha Precia Testarossa]], and [[Anime/PuellaMagiMadokaMagica Akemi Homura]].
* Chapter 98 references The Two Towers.
--> '''Draco''': "I return to you now, at the turn of the -" ([tide] in case you wondered.)
** It also references the fanfic trope "DracoInLeatherPants":
--> "D-do-do you know what you're saying?" Daphne's voice broke. If Lucius Malfoy heard his heir saying that - he'd skin Draco and turn him into trousers!
--> Draco Malfoy smiled, metallic robes gleaming in the light of his full [[spoiler:corporeal Patronus]]; it was a smile both arrogant and dangerous, like being turned into a pair of leather pants was beneath his concerns.
* Chapter 100:
** The [[http://googology.wikia.com/wiki/Kirby-Paris_hydra Parisian]] and [[http://googology.wikia.com/wiki/Buchholz_hydra Buchholz]] Hydras are real, as mathematical games at least. They do take an unimaginably long (but finite) amount of time to kill.
** [[{{Literature/Worm}} Imps that can't be remembered even while they kill you]].
** As well as Literature/TheTwilightSaga.
-->'''Tracey''': "…and everyone knows what happens when there's a girl and a werewolf and a vampire all at the same time!"
*** This is after Tracey has already declared she was "too young for such things" among many other [[AccidentalInnuendo innocent comments]], presumably in reference to Literature/FiftyShadesOfGrey.
** The unicorns we see are:
*** [[{{Fanfic/Luminosity}} Alicorn]], whose [[http://alicorn.elcenia.com/images/luminosity.png avatar]] was [[PromotedFanboy introduced]] as a reward for [[http://elcenia.com/itemz/hpmorfa_hermione2.png a piece of fanart]]. There is a quip referring to how all the other fan artists got their real names in the story.
--->'''Hagrid''': What'd you have called 'er? Hannah, or some such?
*** [[{{WesternAnimation/MyLittlePonyFriendshipIsMagic}} Twilight Sparkle]]. While she isn't named, her description matches down to the [[ChestInsignia Cutie Mark]].
*** "An alicorn's a unicorn's horn," Hagrid said, now louder. "Don't know where yeh all started thinking it meant a [[{{WesternAnimation/MyLittlePonyFriendshipIsMagic}} unicorn with wings]], 'ere's no such thing I ever heard."
** There is also a mention of the possibility of [[Film/EternalSunshineOfTheSpotlessMind losing every single life memory involving the colour blue]]…
* Chapter 102 gives one to the Mexican refugee children.
** [[{{WesternAnimation/MyLittlePonyFriendshipIsMagic}} Rarity]] also shows
--->"Pure white coat and violet hair, with three blue blotches on her flank."
** According to Quirrell, a nineteenth-century dark witch, who called herself the [[Manga/NegimaMagisterNegiMagi Dark Evangel and was known to Aurors as A.K. McDowell]], could cast the Killing Curse a dozen times in one fight.
* Chapter 103 mentions the Shrieking Eels from Film/ThePrincessBride.
* Chapter 105 has Quirrell mention that the [[spoiler:the Philosopher's Stone can perform human Transfiguration]]; another nod to ''Manga/FullmetalAlchemist'' and its version.
* Chapter 108 gives one to [[{{Webvideo/PotterPuppetPals}} Puppet Pals]].
--> '''Quirrell''': "Dumbledore puts in as Head of Slytherin the person of Snape. Snape! Severus Snape!"
** The Defense Professor is [[Theatre/AVeryPotterMusical a particularly good finder]].
** Dark Evangel is recalled as having a particularly embarrassing debut as the [[FanFic/MyImmortal Apostrophe of Darkness]].
* Chapter 109 outright mentions ''TabletopGame/DungeonsAndDragons''.
* Chapter 110 has Quirrell seem rather offended that Dumbledore thinks he killed Nicholas Flamel. [[Literature/{{Neverwhere}} He simply had someone else do it.]]
* Chapter 111:
** Quirrell mentions using the Blood Fort sacrifice, a reference to Rider's Noble Phantasm in ''VisualNovel/FateStayNight''.
** Fal Tor Pan as a spell to reunite his spirit with his body, a la ''Film/StarTrekIIITheSearchForSpock''.
** Hyakuju Montauk is a reference to the infamous Noodle Horror of the Website/SCPFoundation.
* Chapter 119
** Amelia Bones mentions two Aurors named [[Literature/{{Discworld}} Nobbs and Colon]].
** Harry realizes that DMLE policies of immediately destroying objects of dark magic is a result of experiences with things like [[Literature/TheLordOfTheRings rings that should have been dropped in a volcano right away]].
** The "golden pathway" that Harry sees stretching into the future is reminiscent of [[Literature/ChildrenOfDune Leto Atreides II's]] political agenda, whose purpose also was to ensure the survival of humanity, and was also dubbed a Golden Path.
* In chapter 120, [[spoiler:Narcissa]] feels like she has spent a decade in cryonic suspension.
--> She'd felt frozen, stopped in time…
** The spell Minerva uses on her, 'Eunoe', is a reference to the titular river in Dante's ''Comedia''. The river Lethe is said to cleanse one's memories, whereas Eunoe is said to restore one's positive memories.
* Chapter 122:
** [[Literature/BookOfGenesis And it was evening and it was morning, the last day.]]
** Like her original first-year exams, Hermione got [[spoiler: Professor Quirrell]] [[Literature/HarryPotterAndThePhilosophersStone one hundred and twelve percent]] right.
** Harry's phrasing when talking to Hermione about [[spoiler:whether or not they'll ultimately fall in love]] evokes Creator/BazLuhrmann's song "[[http://www.metrolyrics.com/everybodys-free-to-wear-sunscreen-lyrics-baz-luhrmann.html Everybody's Free (To Wear Sunscreen)]]," and it's noted that he isn't wearing sunscreen.