When the Happy Girls' outdoor excursion is rained out, Beetlejuice takes Lydia, Delia, Bertha and Prudence to a Neitherworld amusement park themed around Bartholomew Bat, an old Neitherworld cartoon character. But the black-and-white character has dark and sinister plans in hand, and soon Lydia is the only one left to stop him...—Tony Scheinman