Someone's stolen the world's longest french fry - and CatDog is the detective on the case. Will they crack the case - or wind up with ketchup on their faces?

Catdog Undercover 2000, Simon & Schuster Books for Young Readers, New York, NY

ISBN-13: 9780689830099

Trade paperback

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Catdog Undercover 2000, Turtleback Books

ISBN-13: 9780613213080

Turtleback School & Library edition

Hardcover

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Catdog Undercover 2000, Simon & Schuster Children's, New York

ISBN-13: 9780743408585

Paperback

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