A mysterious figure on an old fishing boat, anonymous postcards, disappearing cousins -- Mizzy is thrilled to have a new mystery to solve! The next installment of this charming series for middle-grade readers, starring a girl with Down syndrome. Mizzy is spending half-term with cousins in St Jude's-on-Sea: a seaside town struggling to accommodate an influx of refugees. When she sees a spooky shadow on a wrecked old fishing boat on the shore, she thinks she's found her next mystery. But her cousins seem determined to keep her in the dark about their comings and goings to the wreck, and she's left alone to help their old Greek-Cypriot grandfather Papou sort out his papers. Then an anonymous postcard arrives for Papou, featuring a picture of the old wreck and the words WHAT REALLY HAPPENS? Mizzy must solve the mystery of the postcard sender and prove once again that she is the best detective in town.