The Chocolate Chase (Geronimo Stilton #67)

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 Mousebergé eggs in town. Then one of the Mousebergé eggs was stolen... and it was up to me to find it! Squeak! Could I chase it down?