Geronimo Stilton is the publisher of 'The Rodent's Gazette', Mouse Island's most famouse newspaper. In his free time, Mr. Stilton likes collecting antique cheese rinds, playing golf, and telling stories to his nephew Benjamin. He lives in New Mouse City, Mouse Island.

The most famouse goldsmith in Hawaii created a necklace for a known actress, but someone wants to steal it! Can Geronimo figure out who the thief is before they run away with the jewels?