Geronimo Stilton - Geronimo and the Gold Medal Mystry

This book is about Geronimo Stilton solving a big mystery about the Olympics.

Geronimo found out that he had to do a report about the Olympics. He had to solve a mystery when his friend told him some one was cheating in the Olympic games.
They went in a big building and when they went in the building they found a secret room. In the room they saw a big machine. Some one tall was sitting on a couch. The machine was used to put the abilties of animals to one person. Geronimo got the cheater and saved the prisoner.