Geronimo Stilton #30: The Mouse Island Marathon

I admit it. I'm not a muscle mouse. I accidentally signed up for the Mouse Island Marathon, I lost my squeak! Me, run a marathon? My friends and Family were determined to help me cross that finish line. Holey cheese, I was never going to make it! Lexile 560, 128 páginas, Tapa Blanda, 1x13x20 cms, Geronimo Stilton, 5 a 8 años.