When pirate cats threaten Mouse Island, Professor von Volt sends Geronimo Stilton and his friends back through time to ancient Greece, Atlantis, and Stonehenge to try and find out how ancient civilizations were able to find peace and avoid war--only to find that the key to peace was under their whiskers the whole time.

It was spring in New Mouse City! I love to celebrate the season with my fellow mice by exchanging chocolate eggs and competing in a confectionary challenge. This year, there was also a special exhibition of priceless jeweled Mouseberge eggs in town. Then the Mouseberge Egg was stolen--and it was up to me to find it! Squeak!

Geronimo and friends go to the Egyptian Museum just before Halloween to investigate what seems to be a real live mummy.

Geronimo Stilton, editor of The Rodent's Gazette, journeys across the desert to the Cheese Pyramid to learn the secret of the Seven Wonders of the ancient Mouse World.

When Geronimo's sister, Thea, discovers an old, mysterious map showing a secret treasure hidden on a faraway island, the gang of the "Rodent's gazette" is dragged into a treasure hunt.

Geronimo and his friends travel to his cousin Stevie Stingsnout's wedding far away on Cheap Change Hill and run into trouble.

Geronimo, broken-hearted after a failed romance, sets out with his family to explore the Eighth Wonder of the Mouse World.

When he hears reports of a ghost haunting New Mouse City's subway tunnels, Geronimo sets out to investigate the story.

When Geronimo is invited to Creepella von Cacklefur's spooky castle, he is surrounded by the gloom of the castle as well as by Creepella's creepy family!

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.