When you're with Geronimo Stilton, it's always a fabumouse adventure 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 Mouseberg eggs in town. Then one of the Mouseberg eggs was stolen... and it was up to me to find it Squeak Could I chase it down?