Billy, Fern and Joe Shortbread are the stars of their family circus, but they also have another talent ... they're experts at solving mysteries! When their circus moves into a new town they soon make friends with a young boy named Tom. But Tom can't enjoy the circus because his granny has disappeared and he's worried he'll never see her again. With the help of their astonishing circus skills can the Shortbread circus stars crack the clues and find Tom's granny? A brilliant McCall Smith adventure story, brimming with wit, wisdom and larger than life characters.

Roll up! Roll up! A new season is about to begin at the Shortbread family's circus! The big-top is ready and everyone is excited to get started. But as the shows begin chief clown Mr Birdcage is in a bit of a pickle - none of his hilarious props seem to be working! When budding detectives Billy, Fern and Joe get on the case to investigate, they soon discover that the props have been tampered with! But who would want to sabotage Mr Birdcage and why?