Explore the weird, hilarious world of Adventure Time™ with this beautifully illustrated 2-in-1 book based on the hit Cartoon Network series. All-new, gorgeous, hilarious, and grotesque illustrations. Ancient wizard lore, spells, curses, and jokes. Memories and mementos from a cute demon girl's childhood. Goofball commentary by Finn, Jake, Marceline, and the Ice King. Check, check, check, check please! A treasure for any fan of the series, this magical and mysterious tome takes a deep dive into the world of Cartoon Network's Adventure Time™. Aspiring heroes and wizards will find invaluable information in The Enchiridion-the ancient book of Ooo-and true fans will learn everything they ever wanted to know about Marceline the Vampire Queen in her Super Secret Scrapbook. From the creative team behind the New York Times-bestselling Adventure Time Encyclopaedia, this in-world compendium of all things Oooian is a humor-, paradox-, and literary contrivance-filled book true to the imagination, innovation, and heart of Adventure Time™.