Tim can’t speak much French. Grk can speak even less. But they have to learn fast when they take the train to France and track down the evil Colonel Zinfandel. In this new thrilling adventure, Tim and Grk chase Colonel Zinfandel from the top of the Eiffel Tower to the bottom of the River Seine, and finally discover the true meaning of revenge . . .

Josh Lacey is the author of many books for children including The Dragonsitter, the Hope Jones series and the Grk series. He has worked as a journalist and written one book for adults, God is Brazilian. His first book for children, A Dog Called Grk, was shortlisted for the Branford Boase Award. Josh lives in London with his wife and daughters.