Episode Title:In Your Footsteps.Episode Description:A bear befriends Finn. Jake, however, thinks he is trying to steal Finn's identity. At the end of the episode, Finn kindly gives the Enchridion, the Book of Heroes, to the bear, believing he wishes to learn how to be a hero himself; however, it is revealed that the bear is secretly working for the Lich, as he is shown giving the book to the Lich's possessed-snail form.