The annual Grilled Cheese Festival is ruined when someone steals all the sandwiches, and it's up to the famous Petectives, Purrlock and Marlowe, to figure out who did it! Was it Jinny Giraffe, who was upset that the Grilled Cheese Festival kept her from putting on her Art Festival? Was it Coach Allan Alligator, who was banned from the festival the year before? OR was it Purrlock's arch nemesis, Meowiearty, who was behind the dastardly deed? In Jason Platt's funny and delightfully illustrated book, readers will have an opportunity to put their petective hat on and try to solve the crime alongside Petectives, Purrlock and Marlowe!