Join Thea Stilton and the Thea sisters on an adventure packed with mystery and friendship! The Thea sisters are invited to the festival of time in Germany! They arrive in the black forest and find that a famous clock has been stolen. The mouselets are on the case. Can they find the thief and return the clock before time runs out?

Geronimo Stilton is the pseudonym of the famous Italian writer Elisabetta Dami. She has written the famous series of books on Geronimo Stilton. She co-owns the Italian based publishing company called Edizioni Piemme. She likes to get all her ideas through her travels to places around the world.