Book DecriptionEach Geronimo Stilton book is fast-paced, with lively full-color art and a unique format kids 7-10 will love. Geronimo and good friend Hercule Poirat are called to investigate mysterious events in the famous Grand Hotel in New Mouse City. There is a ghost haunting the hotel and scaring guests! It was wearing an armour and carrying a ball and a chain. Geronimo knows that ghosts don't exist, but this was pretty spooky. Would Poirat and Geronimo be able to solve this spine-tingling mystery?