"Join Thea Stilton and the Thea Sisters on an adventure to find the seven secret treasures! The search for the seven secret treasures continues. In this incredible adventure the Thea Sisters come across the legendary Jewel of the Queen. They cross rivers of ice, deserts of fire, and other fascinating places on their journey to find it."

A bear named Big and a mouse named Small head out to play. They climb a hill and cross a stream, but with each new adventure, Small finds himself in trouble. "A little help, please!" Small says to Big each time. When they return home, it's Big who needs Small's help for something very important!