5. The Enchiridion! -

: In a famous scene, Finn is asked to slay a harmless, "neutral" ant to prove his cold-bloodedness. He refuses, instead kicking the skeleton guardian in the groin to protect the innocent creature.

In this 11-minute episode, Princess Bubblegum informs Finn that he is ready to quest for the Enchiridion , a magical book that proves the worthiness of righteous heroes. 5. The Enchiridion!

The book's legacy extends to the video game Adventure Time: Pirates of the Enchiridion , where the Land of Ooo has been flooded, and Finn and Jake must use their heroic skills to save the waterlogged world. : In a famous scene, Finn is asked

: A standard playthrough focused on main objectives takes approximately 6.5 hours , while a 100% completionist run takes about 11.5 hours . The book's legacy extends to the video game

While initially presented as a simple hero's guide, the Enchiridion becomes central to the series' deep lore:

The is the fifth episode of the first season of Adventure Time , originally aired on April 19, 2010. This pivotal episode follows Finn the Human and Jake the Dog on a quest to retrieve the legendary hero's handbook, The Enchiridion , from the top of Mount Cragdor. Episode Summary & Key Events