Geronimo and his friends set sail to the Ratlapagos Islands to search for a sunken treasure. He soon begins to suspect that they aren't the only ones looking for the treasure.

When Merlin is just eight years old, his parents abandon him, leaving him to starve to death in the woods. He survives. More than that, he thrives: Over the course of the next four strange years, he discovers and tames his terrifying powers; pretends to be a traveling player, passing among peasants and princes; and fatefully befriends a future king. In the three novels of the Young Merlin Trilogy -- Passager, Hobby, and Merlin -- master storyteller...

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

When Geronimo's fears begin taking over his life, Thea and Trap decide to cure him by taking him to the jungle, where he must eat bug soup, swim in raging rivers, and even wrangle snakes.

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.