When he begins receiving packages containing useless things he did not order, Geronimo Stilton discovers that someone on the Internet has stolen his identity, a dilemma that compels him to enlist the help of computer expert Professor Margo Bitmouse, who helps Geronimo track down the hacker.

When director Mousen Scorsese's newest film goes missing at New Mouse City's first film festival, Hercule and Geronimo spring into action to solve the case.

It's the grand opening of Traps new superstore, but nothing is working. The lights won't turn on, the doors won't open, and the loudspeaker is broken. Geronimo must figure out who is trying to sabotage the grand opening.

Geronimo is assigned to report on the Olympics.

When Wild Willie showed up at my door and invited me to travel with him to Japan, I jumped at the chance. We were in search of an ancient, legendary samurai scroll that holds the secret to a long-lost fighting technique. The scroll had fallen into the wrong hands, and it was up to me and Wild Willie to track it down and save the day. But first, we would have to fight a group of talented ninjas. Holey cheese -- this would be one adventure I would never...

Geronimo Stiltonoot and his family save a young dinosaur from the river. The dinosaur and Benjamin quickly become good friends, but the dino turns out to have a tremendous talent for mischief. Can Geronimo get him back to his herd before he causes a megalithic disaster?

"Geronimo Stilton's ancient ancestor Geronimo Stiltonoot is back in another prehistoric adventure! It's the night of the big Cavemouse Idol competition, but Geronimo Stiltonoot isn't there. He has a cold, and goes to bed early. So when it's discovered that the contest's valuable grand prize has been stolen, Geronimo is the main suspect! He must prove his innocence . . . or he'll end up in enormouse trouble!" --

Geronimo and his friends participate in a treasure hunt set up by his rival and are determined to overcome all of its challenging obstacles, including tricky riddles and smelly dinosaurs.

It's the most wonderful time of the year! Geronimo has Christmas all prepared: presents, a tree, and a very special dinner. But when disaster strikes and Geronimo ends up in hospital, suddenly it's up to the rest of the Stiltons to bring the magic back into the holiday.