The episode closes with a trip to a museum where Billy accidentally unleashes the curse of a mummy.
: Grim gives Billy a piece of supernatural Underworld chewing gum with a strict warning not to swallow it. Naturally, things go wrong when Billy ignores the advice, leading to a massive bubble that threatens to consume everything. Option B: " The House of No Tomorrow 4x5Las sombrias aventuras de Billy y Mandy 4x5
