Literature: The Secrets of the Immortal Nicholas Flamel
The Secrets of the Immortal Nicholas Flamel is a series of 6 books by Irish author Michael Scott. It's a contemporary fantasy that is set in modern day San Francisco at the beginning of the series, but also feautures other locations throughout the world, as well as various Shadowrealms.The Alchemyst, the first book in the series, begins in San Francisco when twins Josh and Sophie Newman discover that the owner of the bookstore where Josh works is the immortal French alchemist, Nicholas Flamel. Flamel and his wife, Perenelle, are the guardians of the Book of Abraham, a collection of the most powerful spells in the world, which they have protected for centuries. When Dr John Dee discovers the Flamels whereabouts, he attacks and snatches the book to help his masters, the Dark Elders, cause The End of the World as We Know It. Josh and Sophie intervene to help Flamel, but now they too are being hunted by Dee and creatures that predate humanity.The series consists of:
Alchemy Is Magic: Integral to the plot. Nicholas Flamel is a major player, and the book which contains the secrets of the Stone and Elixir are the driving forces behind the conflict. However, Nicholas's foes aren't interested in the elixir, but in other secrets hidden in the book.
Quite literally. Perenelle Flamel is imprisoned on Alcatraz.
Also, while on Danu Talis Scathach, Joan, Saint-Germain, Palamedes, and Shakespeare end up in a prison that is actually inside the mouth of an active volcano.
All Myths Are True: All of them. A lot of them got the facts wrong, but there's a grain of truth inside every one.
And I Must Scream: Mars and Abraham the Mage, both of whom are Taken for Granite in different ways (although Mars was later freed). It's even stated that Abraham's mind would remain "alert and curious" even after being turned into a statue.
And Then John Was a Zombie: At the very end of the series, Josh uses the power of the four Swords of Power to become Marethyu, aka The Grim Reaper. Not a bad thing, though, considering Marethyu is a multimillion year old Chessmaster with the responsibility of saving the universe.
Anti-Villain: Machiavelli is the closest this series has. Josh actually says that he would trust Machiavelli the most because the guy happens to be the only one who is an immortal, and has give Josh an honest answer to anything. And Dr. Dee in the Enchantress switches from full on villain to an anti-villain once he's left to die by his masters, Osiris and Isis
Anyone Can Die: In the Enchantress: Mars, Odin, Hel, Dee, Isis and Osiris, Prometheus, Niten(for a time), and Nicholas and Perenelle.
Nicholas' and Perenelle's deaths are debatable. In the Epilogue, Josh/Marethyu writes Sophie a letter, saying that "the Flamels send their love."
Battle Aura: People do spells through their auras. So you can expect them to glow when they are going to throw a fireball.
And they come in different scents!
Beethoven Was an Alien Spy: So very many historical characters are actually immortals starting with the title character and his wife but other major characters include John Dee, Niccolo Machiavelli, Joan of Arc, William Shakespeare, Billy the Kid, and Virginia Dare.
Blind Seer: The Witch of Endor gave up her physical eyes for the power to see possible futures; she is able to see normal things by using magic to see out of mirrors.
Broke The Rating Scale: Scathach at one point described the amount of trouble they were in as twelve out of ten. She later revised this to fourteen.
Character Title: The Alchemyst is Nicholas, the Magician is Dee, the Sorceress is Perenelle, the Necromancer is mainly Josh but also Dee, the Warlock is mainly Niccolo Machiavelli but also Mars Ultor, Billy the Kid, and Aten, and the Enchantress is Sophie.
Chekhov's Gun: In the Enchantress It's mentioned that there is the possibility of bringing someone back to life using and aura, this shows up again several chapters later when both Prometheus and Niten have died and Tsagaglalal can only bring one back
Chekhov's Gunman: Remember in The Alchemyst when Nicholas mentions that he knew Shakespeare? Guess who turns up two books later as a skilled magician and the leader of a pack of werewolves. Go on. Guess.
In The Warlock, it is revealed that Aunt Agnes is actually Tsagaglalal, or She Who Watches, an immortal as old as Gilgamesh. Also happens to be his sister.
Cold Iron: A few Elders make mention of iron having this effect on them, if not directly, then implied in the descriptions of their homes as having little to no iron.
The Chessmaster: Marethyu (aka the one-handed man, aka Josh) in The Necromancer seems to be one, judging by the fact that he helped Nicholas discover the secrets of the Codex, taught Saint-Germain how to master fire, and CREATED AN ENTIRE SHADOWREALM to catch Scatty and Joan when they fall into Machiavelli's trap, all so Scatty, Joan, Saint-Germain, Shakespeare, and Palamedes can come back in time with him to fight in Danu Talis when it falls. And Abraham, Marethyu's partner, is at least as much of a Chessmaster as Marethyu.
The Archons take this to another level: if the Dark Elders haunt the nightmares of humans, then these guys haunt the Dark Elders' nightmares.
The Dark Elders are simply a faction of normal Elders united against humanity, and Elders look almost exactly like humans until the Change sets in. That's when they become... things varying from cat-headed people to golden statues to gigantic spiders. The Archons are (mostly) Humanoid Abominations, and the Earthlords are only vaguely humanoid and VERY eldritch.
Emotion Eater: All vampires. Notably, this is one of the few series that has Emotion Eaters in a heroic role. The only time we see Scatty using her powers is to make Sophie feel better by eating (that's eating, not easing) her anxiety.
Historical In-Joke: Every immortal human to appear so far is a notable historical figure, and the dangerous magical creatures Dee has unleashed to help him capture the Flamels have been responsible for a number of historical disasters.
Niten has this train of thought, even going into the longest speech he has spoken in the entire series to elaborate on it.
The Flamels are closer to this than to Who Wants to Live Forever?; they accept the chance that they might die, but don't actually dislike living forever. It helps that they have Eternal Love.
Machiavelli is somewhere between Who Wants to Live Forever? and this trope. While being immortal allowed him to set plans into motion literally centuries in advance, he made a promise to his dying wife to never remarry. She died over 400 years ago...and he has kept his word ever since.
Osiris and Isis turn out to be Josh and Sophie's parents at the end of The Warlock.
Zig-zagged in "The Enchantress" in that it turns out that Josh and Sophie were taken from their families in their own times (Josh was from back when Neanderthals walked the earth and Sophie was from 9th or 10th century Russia) by Osiris and Isis.
Almost every major character is connected to each other in some way. The Witch of Endor is Scathach's grandmother, Mars Ultor's wife, and Prometheus' sister. Tsagaglalal, She Who Watches, is Gilgamesh's sister, Prometheus' daughter (sort of), and most surprisingly, Abraham's wife. Hel is Odin's niece. Aoife is Scathach's sister. She also becomes Niten's wife at the end of the series. St. Germain was a former student of Nicholas', and recently (about four years before the start of the series) became Joan of Arc's husband (she's also Scathach's best friend).
Our Mermaids Are Different: The mermaids are daughters of Nereus, the "Old Man of the Sea" who himself is human from the waist up with an octopus bottom. The mermaids themselves are called Nereids (though Dee refers to them as mermaids) and vary in appearance. Josh notes that some look like beautiful women while others are more fishlike and some are even crab-like. All of them have green hair and green skin.
Our Vampires Are Different: Well, some of them. The different ones still display some traits of traditional vampire, like not needing to breathe, but they feed off emotions rather than blood. All other vampires feed off emotions carried in the blood, but those vampires are considered of the weakest class.
Precursors: Scathach is a ten-thousand year old vampire, and that seems impossibly old. But as a Next Generation, she is thousands upon thousands of years younger than the other Elders, who in turn are a good deal younger than the Great Elders who built Danu Talis. Before them were the vaguely humanoid Archons, who once ruled the Earth through science, and they were preceded by the Ancients, of which nearly nothing is known. Before these were the monstrous, scaly Earthlords, who created vast cities and may very well have created the planet.
Rent-a-Zilla: The second book gives us the Nidhogg, who starts out as an oversized Komodo Dragon but soon begins walking on two legs like Godzilla and smashing buildings and cars in Paris.
Reptiles Are Abhorrent: The Nidhogg is definitely an abhorrent reptile, and Machiavelli's aura is described as smelling like a snake. (This may make herpetologists cry, since the majority of reptiles don't have a noticeable smell.) The Earthlords take the cake for this trope.
Resurrection Sickness: Perenelle uses her aura, as well as Sophie's and Tsagaglalal's, to revive Nicholas for one more day... at the cost of one of her remaining two days left.
Retcon: In the first book Scatty talks about Joan of Arc and implies that she did die. The second book of course reveals that Joan is alive and well, and that Scatty herself personally saved her from death.
Scaled Up: Isis and Osiris, when they show their Earthlord form.
Stable Time Loop: Toward the end of the series, the conflict becomes less about stopping bad things from happening in the present and more about traveling to the past and making sure things happened the way they did.
A twisted example at the end of The Enchantress. Josh fuses the Four Swords and becomes Marethyu. He still has the Codex (the Book of Abraham the Mage), and he mentions that he'll sell it to a poor French bookseller...note Nicholas Flamel himself, thus starting off the entire series.
Sufficiently Advanced Alien: The Archons are not aliens, but they do fit this trope. Cernunnos tells Dee that magic and Archon technology are indistinguishable to humans and even Elders. The Ancients were more advanced than they were, and the Earthlords were even more advanced.