Purrlock and Marlowe have been invited to Paris by Marlowe's Aunt Foo Foo to see the unveiling of M. Henri Porcupine's painting. It's his first painting in ten years and highly anticipated. But, when the detectives arrive, they find out that the painting has been stolen only moments after its reveal! To make matters worse, Marlowe's Aunt Foo Foo has been arrested for the crime. But if it wasn't Aunt Foo Foo, then who? The only other suspect is Hugh Manatee, M. Henri's artistic rival. And what exactly did M. Canard, the arts reporter for the newspaper, see and hear the night of the theft? In Jason Platt's funny and delightfully illustrated story, readers will have their own opportunity to piece the puzzle together and, hopefully, save Aunt Foo Foo!