Publisher ‏ : ‎ Scholastic (25 July 2018) Language ‏ : ‎ English Paperback ‏ : ‎ 128 pages ISBN-10 ‏ : ‎ 9352755200 ISBN-13 ‏ : ‎ 978-9352755202 Reading age ‏ : ‎ 7 - 12 years Item Weight ‏ : ‎ 160 g 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 jewelled Mouseberge eggs in town. Then one of the Mouseberge eggs was stolen and it was up to me to find it! Squeak! Could I chase it down?