5. The Enchiridion! -

: During the chaos, Finn accidentally attacks the Keyper , who happened to be dressed in devil pajamas. The Book: Lore and Importance

: A standard playthrough focused on main objectives takes approximately 6.5 hours , while a 100% completionist run takes about 11.5 hours . 5. The Enchiridion!

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. : During the chaos, Finn accidentally attacks the

: It is revealed later in the series that the book contains the power to tear open portals between dimensions in the multiverse. : It is revealed later in the series

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

Adventure Time: Pirates of the Enchiridion for Nintendo Switch