Geronimo Stilton: #13-14

I'm Geronimo Stilton. I run a newspaper, but my true passion is writing adventure stories. In my next two adventures, I search the subway tunnels of New Mouse City for the latest ghost haunting, only to find the fright of my life -- the ghost turned out to be a cat! I also try to keep a legendary gem hidden in the heart of the Amazon jungle from falling into the wrong paws.