Geronimo just doesn't understand why everyone is so excited about the Olympics starting in three days, since he's not exactly a sports fan. Then his sister, Thea, begs him to cover the games for The Rodent's Gazette. Geronimo refuses, of course, but that does him no good since his grandfather, the founder of the newspaper, insists he head straight to Athens to write an article and host a daily television program about the Olympics.

On the plane, a clumsy and pushy flight attendant turns out to be Hercule Poirat, Geronimo's old detective friend, in disguise. He confides to Geronimo that there's something strange going on at the Olympics. Hercule persuades Geronimo to help him investigate. While Geronimo must learn to overcome his shyness in order to star in his TV show, that's just one challenge he faces in Athens. Geronimo and Hercule must turn into spies in order to solve the Olympics mystery, which involves a character Geronimo Stilton series fans will remember.

This is another enjoyable Geronimo adventure and comes complete with tons of  interesting facts about the Olympics, including history tidbits, traditions, participating countries' flags and much more.