Adventure Time Season 10 Episode 1 - The Wild Hunt Episode Title:The Wild Hunt.Episode Description:Still feeling guilty about Fern's death, Princess Bubblegum tasks Finn with protecting the banana guard from a monster later called "the Grumbo". Finn can't bring himself to kill the monster, since he keeps seeing Fern's face when he is close to defeating it. He later meets Huntress Wizard (voiced by Jenny Slate), who is also trying to slay the Grumbo and tries to encourage him. They find the Grumbo's cave, and Finn stalls again. Huntress Wizard puts herself in harm's way; Finn imagines Fern in her place, and finally slays the Grumbo. Afterwards, Finn and Huntress Wizard casually admit their feelings for each other and realize that the Grumbo was artificially-created. Uncle Gumbald plots to create another monster, using Fern's remains.