The Phantom Of The Subway : Geronimo Stilton 13

Smoking Swiss cheese! There was a ghost haunting New Mouse City's subway tunnels. My whiskers were trembling with terror at the thought of it! But I knew I had to get the scoop for The Rodent's Gazette. So I set off to investigate. Little did I know that I was in for the freight of my life because the ghost turned out to be a cat!