Part 3/10:
The introduction of the Lich, the show’s ultimate antagonist, pulls the rug out from beneath Finn and Jake’s carefree adventures. Unlike any villain before him, the Lich embodies the essence of destruction, engaging in acts of unspeakable cruelty that have left fans questioning the nature of the show. One episode stands out in particular when the Lich kills Finn and Jake's hero, Billy, off-screen, further transitioning the series away from its initial lighthearted tone.