Its 1852 and cousins Patrick and Beth sail to Fiji on the HMS Calliope under the command of Captain James E. Home. They arrive at the islands to find that the Christian Fijians are at war with the non-Christian Fijians. Missionary James Calvert is trying to make peace and suggests that the captain allow peace negotiations on board the British vessel. Patrick and Beth learn about sacrificial living when they observe Calverts determination to live on...

George and Harold are forced to contemplate a world without Captain Underpants.

From the Jurassic period and the dinosaurs, to a medieval castle, Geronimo Stilton and a few members of his family embark on an adventure through time in Professor von Volt's new time machine, the Mouse Mover 3000.

Michael Evans is in Montana on a dinosaur dig with his paleontologist father, but he certainly never expected to find a live Tyrannosaurus Rex plucked out of its own time and looking for dinner, nor encounter a girl with some very advanced technology trying to trap the beast.

Ever since Corey Fletcher found out that he's the world's first "throwback," with the power to not only visit history, but change it, he's been spending as much time in the past as possible. Corey loves using his skills to fix problems and help his friends and family. But as Corey becomes more and more addicted to rewriting history, he learns that time travel might change him in ways he may never be able to reverse. Aware now that he can't keep going...

When Geromino 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.

Greedy Llama travels back in time to eat his marvelous birthday donut a second time, but a Baby Llama follows him to the present, and soon his house is a chaos of cave llamas, barbarian bunnies, and Viking pigs.

I couldn't believe it. I, Geronimo Stilton, had to travel back in time to save a friend! Professor Paws von Volt needed my help. He had traveled to the past alone to prove that an artifact in the Egyptian Mouseum was genuine -- and now he was lost in time! My friends and I boarded the professor's newest time machine to go find him, and ended up on a crazy trip through history. We met Cleopatra, Genghis Khan, famouse poet Dante, Queen Elizabeth I,...

Bobby Pendragon lands in Denduron, a medieval world where the gentle Milago are enslaved by the Bedoowan, and it's Bobby's job to free 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.