Bubbles is in big trouble with Professor Utonium. She keeps rescuing stray animals and bringing them home, and the Professor has had enough. But then Bubbles brings home another stray--a baby whale! Can Blossom and Buttercup help their sweet sis hide her latest pet before the Professor gets home? Full-color illustrations.

Fishy Business 2001, Scholastic, New York, NY

ISBN-13: 9780439295901

Trade paperback

Fishy Business 2001, Turtleback Books

ISBN-13: 9780613438216

Turtleback School & Library edition