The Zig Zag Girl

When the body of a girl is found, cut into three, Detective Inspector Edgar Stephens is reminded of a magic trick: the Zig Zag Girl. The inventor of the trick is an old friend of Edgar's. They served together in the war as part of a shadowy unit called the Magic Men. When Edgar receives a letter warning of another 'trick', the Wolf Trap, he knows that they are all in danger...