The Evil Triplets — Paul van Loon

Alfie is enjoying life as a werewolf - until his crazy, werewolf-hating neighbour, Mrs Chalker, arrives back in town. And she appears to have turned over a new leaf. Can Alfie trust her? Then things gets even more suspicious when two Mrs Chalker lookalikes are spotted carrying a rowing boat through the forest. There can't be three Mrs Chalkers, can there?

Alfie is on his guard, but too late he discovers that the Mrs Chalkers are all part of a club dedicated to eradicating all werewolves. Alfie better watch his hairy werewolf back...