|aMeet Piotr, Minnie, Andrew, Flora and Sylvie - true friends and even better mystery-solvers! Flora and Sylvie are going on the holiday of a lifetime with their dad. But - WHAT! - Dad cancels the trip only hours before the flight because - OH MY GOODNESS - someone has stolen precious blueprints of Dad's newest invention: an amazing new scooter. But who? And why? Time to call on the only five people who can possibly solve the crime! The third in a fantastic new series filled with friendship, adventure and mystery!