Join some very enterprising mice in this funny, festive book from best-selling creator of Percy the Park Keeper, Nick Butterworth. A great Christmas gift! Christmas time, a happy time - or so it should be. But for two small mice, Lottie and Jack, Christmas Eve is overshadowed by one big problem... That Cat. How can they stop him from spoiling everything? Their friend, the wise rat, Ton Chee, has an idea involving a little golden bell ... but will it work?