Enter the world of Geronimo Stilton, where another funny adventure is always right around the corner! Each book is a fast-paced adventure with lively art and a unique format that kids 7-10 will love.

It was my most thrilling adventure yet! My old friend Professor von Volt had discovered the location of the famous Ruby of Fire. And before I could let out a squeak of protest, my sister Thea had dragged me into a race to be the first to find the legendary gem.

The jewel was protected by thousands of ancient booby-traps—a 'fraidy mouse's worst nightmare! Would I make it through with my fur intact?

Suspense, clever twists, and hilarious moments await in this exciting adventure!