Spike Brown 
Clever Mr. Beaver [EPUB ebook] 

Beavers are both eager and clever, and Mr Beaver is no exception. Famous along the riverbank for his flood water management schemes and dam building. He is also jolly good at solving crime and Mr Badger and Mr Toad have come to rely on his abilities rather. Inspector Jack Russel of the local rural force even takes tips from him on how to use a magnifying lens