Billy Bunter and the Mystery Prowler of Greyfriars Vol 1

There's a mystery prowler at Greyfriars!

An Old Boy Crocker establishes a business near the school gates and there's a mysterious night prowler on the loose. Can he be caught? Coker and Loder both try their luck as detectives, and both end up making fools of themselves. Detective Drake arrives to investigate the mystery and almost has success on his first night. Drake thinks he can identify the prowler, but he needs a lot more proof. Various people are suspected of being the prowler. Will Drake's patience finally pay off and will he get his man?