This is the story of Ali Ferguson who has just moved into a new flat with his mum. On the 14th floor lives Caitlin and her dad and Falcon, the dog she looks after. Gez is her best friend and together, Ali, Caitlin and Gez are going to solve a mystery and save Houdini.
Ellen Caldecott has written another fantastic book! Every time the characters are in trouble or in a scary place, you either go all tense and hope they can get out or you feel as though you're the one in danger. Like Ms Caldecott's other book I've read (How Kirsty Jenkins Stole the Elephant) the excitement builds up and up and up and there's always a twist at the end. The descriptions were great and I hated putting the book down!

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