What good is a toy that will wind down? What if you could put a heart in one? A real heart. One that beat and beat and didn't stop. What couldn't you do if you could make a toy like that? From the moment Mathias becomes the owner of a mysterious piece of paper, he is in terrible danger. Entangled in devious plots and pursued by the sinister Doctor Leiter and his devilish toys, Mathias finds himself on a quest to uncover a deadly secret.

 

There are 368 pages in this book. This book was published 2015 by Random House Children's Publishers UK .

Jeremy de Quidt (Author) Jeremy lives in Somerset with his wife and their three children. Gary Blythe (Illustrator) Gary Blythe is an award-winning illustrator. His first children's picture book, The Whales' Song, written by Dyan Sheldon, won the Kate Greenaway Medal in 1990. Gary lives in the Wirral, near Liverpool.