The Case of the Detective in DisguiseBook - 2001
Someone is stealing brownies from Mike and Mary's sandwich shop. Jigsaw is piecing together the clues one crumb at a time. But no one is going to snatch a brownie while a detective is watching. Time for Jigsaw to go undercover and catch this brownie bandit.
Publisher: New York ; Toronto : Scholastic, c2001.
Characteristics: 72 p. :,ill. --