Thea, Geronimo's sister, is invited to a college on Mouse Island to teach a journalism class, and when a student disappears, Thea and five of her students go on an adventure to solve the mystery.
Mouse journalist Geronimo Stilton is accidentally registered to participate in the Mouse Island Marathon. He relies on friends and family to help him train for and survive the event. Includes a list of tips from Geronimo for people training for their own marathons.
Geronimo Stilton investigates reports that the subway tunnels in New Mouse City are haunted and finds himself battling not a ghostly apparition, but a cat.
Geronimo Stilton is a mouse who runs a newspaper in New Mouse City. On a field trip to Niagara Falls with his nephew, Geronimo is the target of mouselet schemes to send him over the Falls in a barrel.
Princess Sterling sends the Dragon of the Rainbow and Scribblehopper to bring Geronimo Stilton back the the Kingdom of Fantasy, because he is the hero in the dragon prophecy who will find the stolen dragon egg and restore harmony to the kingdom.
Invited by the Queen of the Fairies to return to her kingdom and help in the quest for the true heart of happiness, Geronimo soon finds himself on an adventurous journey riding on the wings of a rainbow-colored dragon through seven fantastic lands.
Reporter Geronimo Stilton is assigned to cover the Olympics in Greece for "The Rodent's Gazette." There his penchant for adventure and mystery were satisfied.