Ho, ho, ho! I love Christmas in New Mouse City. But this year, there was just too much work to do at my newspaper, The Rodent's Gazette. I was so busy, I could hardly even squeak! And my friends and family were getting their tails in a twist because I didn't have time to celebrate. Cheese niblets! If only I had my own team of reindeer and could fly far, far away to Santa's Toy Factory . . .

Geronimo's in danger! At least, that's what secret agent Kornelius von Kickpaw thinks. Geronimo isn't convinced. Besides, he's got other problems to worry about - he's lost the deed of ownership to The Rodent's Gazette! Can Geronimo track it down before his nemesis, Sally Ratmousen, gets her paws on his beloved newspaper?

It all started when my sister, Thea, discovered a mysterious map. It showed a secret treasure on a faraway island. And before I could let out a squeak of protest, Thea dragged me into her treasure hunt! In no time at all, we'd set sail for the island. It was an adventure I'd never forget....

Professor von Volt plans to send Geronimo and his time traveling friends back to King Solomon's court to borrow a ring that supposedly will restore harmony to Mouse Island and balance the environment--but they soon find themselves taking an unplanned detour through Napoleon's court, a Viking village, and the Minotaur's labyrinth, before finally arriving before the wise King.

When Thea goes missing along with an ancient Mayan necklace, Geronimo Stilton is fast on the case, scouring Chichén Itzà for clues to find them.

Geronimo Stilton travels back in time to ancient Rome, the great Mayan Empire and the palace of Versailles during the age of the Sun King, where he experiences wild historical adventures.

When Geronimo Stilton and his friends time travel to three different centuries seeking artifacts missing from the mouseum, they meet Alexander the Great, Queen Cleopatra, Francis Drake, and Mozart.

The Stiltons are off to Penny Pincher Castle for a fabumouse wedding! Cousin Stevie Stingysnout is marrying Patience Plainpaws. But when they arrive there's no wedding reception, no refreshments - and the bride is very unhappy. What secrets are hiding in Penny Pincher Castle? It's up to Geronimo to find out!

When Geronimo finds he will be spending the holidays alone he becomes depressed, but then discovers an amazing surprise that teaches him the true meaning of Christmas.

Every Valentine's Day Geronimo Stilton throws a big party, and he's sure this one is going to be the best yet! Isn't it? When failed deliveries and burst sewer pipes leave Geronimo questioning what more could go wrong, a kindly stranger shows him that love really is all around.