When a celebrated goldsmith from Hawaii creates a necklace for a famous actress, rumors that the necklace is about to be stolen prompt Geronimo Stilton's investigation to identify the thief.

"It was spring in New Mouse City! I love to celebrate the season with my fellow mice by exchanging chocolate eggs and competing in a confectionary challenge. This year, there was also a special exhibition of priceless jeweled Mouseberge eggs in town. Then the Mouseberge Egg was stolen--and it was up to me to find it! Squeak! Could I chase it down?"--Page 4 of cover.

Ben rides his new bicycle the very, very long way to school but Adrian Underbite, perhaps the world's largest third-grader, takes the bike anyway and later, when Ben finds Adrian in trouble, he must decide whether or not to help the larcenous bully.

Agatha and her cousin Dash are hot on the trail of the missing crown of Venice. The ancient relic, worn by the Doges or Dukes of Venice, was stolen during the city's famous carnival, and it seems like everyone is a suspect.

"Olga is an orphan and a thief, relying on trickery and sleight of hand to make her way in the world. But it's magic, not thievery, that could get her into trouble. When Olga and her partner-in-crime Pavel learn of a valuable jewel kept in a secluded castle, Olga sees an opportunity to change their lives: a prize so big, they'd never have to steal again. But the castle is not as it seems, ruled by an enchanter who hosts grand balls every night, only...