Foreword going backward -- Preface regarding no one -- Introduction to the introduction -- Book I. Worthless inhabitants of the land of Ooo -- Book II. Utterly insignificant inhabitants of the land of Ooo -- Book III. The land of Ooo and you -- Book IV. The lost texts of Ooo -- Book V. Forbidden chapters in the Encyclopaedia of Ooo.;Written and compiled by the Lord of Evil himself, The Adventure Time Encyclopaedia matches the playful, subversive tone of the cartoon series, detailing everything anyone will ever need to know about the postapocalyptic land of Ooo and its inhabitants-- secret lore and spells, fun places you should visit and places where you will probably die, whom to marry and whom not to marry, how to make friends and how to destroy your enemies-- plus hand-written marginalia by Finn, Jake, and Marceline. An indispensable companion to the show, this side-splittingly funny love letter to Adventure Time is sure to appeal to fans of all ages.