There s a new postman in Doggeroo and he doesn t know the rules of the Postman Game. Not only does he accuse Foxie of biting him, but he also calls Jack a mongrel! And when Fat Molly Cat from the library comes to stay with Auntie Tidge, things don t get any better. What did Jack find caught on the fence? Will it help him solve the case of THE LYING POSTMAN?