Stilton, Geronimo

The Thea sisters are off to Japan on a cultural exchange program and while they're busy exploring Kyoto and admiring the beautiful cherry blossoms, a valuable item is stolen from their friend Kumi's family. The five mice investigate to help catch the thief.

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.

"When the Thea Sisters' friend Bridget returns to Scotland for a family emergency, the five mice offer to help. And when Bridget goes missing, they have to rush to Scotland to find her! Along the way, the Thea Sisters encounter Celtic legends, cryptic messages, and hidden treasures on a trip that's full of surprises!" -- p. [4] of cover.

Thea Stilton, Geronimo's sister, is invited to teach a journalism class at prestigous Mouseford Academy and she and five amazing students solve the mystery of a student that disappeared.

A Geronimo lookalike is going around pretending to be Geronimo and trying to take over The Rodent's Gazette.

When Stilton cheese begins disappearing during Geronimo Stilton's trip to England, he investigates to find the cheese thief.

Thea drags Geronimo on a quest to a desert island in her search for buried, haunted pirate treasure.

In THE SEARCH FOR SUNKEN TREASURE, Geronimo and his friends set sail to the Ratlapagos Islands to search for a sunken treasure, and in THE MUMMY WITH NO NAME, he rushes off to the Mouseum to find Professor Sandsnout.