Finn goes to fight it, but Tree Trunks' "adventurer's instincts" tell her to put on makeup and seduce the brain beast with her womanly charms. Jake has to leap in to save Tree Trunks while Finn attacks the monster's magic gem weak spot. Finn, enraged, tells Tree Trunks that she is putting herself in danger. Dejected and crying, she leaves, only to find the Crystal Gem Apple in the heart of the forest. Unfortunately, a Crystal Guardian appears and begins copying Finn and Jake's actions, blocking every attempt to fight it physically. Finn and Jake realize that they have to fight the Crystal Guardian "Tree Trunks-style" by putting on makeup and tricking the monster into letting Tree Trunks take a bite of the Crystal Gem Apple. She bites the apple, pauses for a second, then explodes, leaving Finn, Jake, and the Crystal Guardian shocked and staring at each other in horror. In a final enigmatic scene, Tree Trunks is seen walking in front of a crystal background laughing happily. Production "Tree Trunks" was written and storyboarded by Bert Youn and Sean Jimenez from a story by Merriwether Williams and Tim McKeon, and directed by Larry Leichliter. Although the episode was the fourth aired, it was really the sixteenth produced; this is why Tree Trunks appears in the later season one episode "Evicted!" despite her vanishing at the end of this entry. The episode features the introduction of the titular character, played by Polly Lou Livingston. Livingston was a friend of Pendleton Ward's mother, Bettie Ward, and knew Pendleton when he was a young child. After having not seen her for eight years, he approached her, asking if she would like to play the voice of a character on Adventure Time. She noted that she "nearly fainted" when asked, and was surprised he still remembered her. Bettie claimed it was due to her unforgettable Southern drawl. Originally, the episode called for Tree Trunks to simply explode. The ending, featuring her walking in a strange crystal dimension, was added after the story board was submitted. Thus, this action was the genesis for the season two sequel "Crystals Have Power", which saw the return of Tree Trunks. The unedited version of the episode, featuring Tree Trunks simply exploding, was featured, however, on the Adventure Time: My Two Favorite People DVD. Episode composer Casey James Basichis used a variety of basses and saws to