Geronimo Stilton

Newspaper editor Geronimo Stilton is invited by his nephew to career day at school, where Geronimo causes a volcanic explosion, releases the classroom's pet gecko, and becomes tangled up in the playground's tunnel slide.

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.

Geronimo Stilton's cousin, the athletic Piccolo Tao, signs him up for a karate tournament, leaving Geronimo with less than one week to get into fighting shape.

Geronimo Stilton, who loves Valentine's Day, has a date with Petunia Pretty Paws, but when he receives a call from private investigator Hercule Poirat, who needs help with a mystery regarding a stolen painting in New Mouse City, he has trouble deciding what he should do.

Geronimo Stilton accepts a challenge from his friend Bruce Hyena, and enters a race across the United States on his bicycle.