I, Geronimo Stilton, was so excited to travel on my third journey through time! Professor Paws von Volt had invented a portal to take my family and me to the past. On this trip, we visited the Ice Age, ancient Greece, and the Renaissance. I encountered wooly mammoths and enormouse bears, wrote and starred in a play, and even helped put a bad guy in prison! But then the portal started malfunctioning -- could we get back to the present day, or would...

Sometimes a busy businessmouse like me needs a nice, relaxing vacation. But of all the rotten rats' luck -- every time I tried to get away, disaster struck. My aunt Dizzy Fur's mouse hole caught on fire, my office was flooded, and our printing press broke down! When I was finally ready to depart, all the good trips were booked up. I was stuck in a flea-ridden old hotel, sharing a room with a bunch of Gerbil Scouts! I couldn't wait to get back to my...

The discovery of an old map by his sister Thea leads Geronimo and his family to search for buried treasure on a faraway island.

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

When Geronimo gets lost looking for hidden treasures in the Gobi Desert, he comes across giant dinosaur bones.

The Pirate Cats have figured out how to time travel! Their first item of action is to go back to Spain, 1492, to sail the ocean blue with Columbus, hoping to take over the crew and then take over America for cats to rule in the future!

Geronimo joins the effort to rescue Blossom, Queen of the Fairies, who has been kidnapped by the Queen of the Witches and taken to the Kingdom of Nightmares.

"Old Mouse City is in an uproar. The most precious artifact in the mouseum -- the Stone of Fire -- has been stolen! Geronimo Stiltonoot and his cavemouse friend Hercule Poirat are on the case. It's up to them to retrieve the stone from the ferocious Tiger Khan and his band of fearsome felines!"--Page [4] of cover.

When Thea Stilton travels to Ireland to search for a missing agent, she finds that the whole fantasy Land of Erin is being threatened by earthquakes, and soon Will Mystery and the Thea sisters follow to help her find the secret of the fairies.

Preparing to watch the Famouse Fjord Race, mouseking Geronimo Stiltonord, a family member from the ancient far north, is dragged onto a boat, despite his lack of sailing skills, before learning that the dragons are preparing for another attack.