Harry Maul, also known as The Hawk, is a safe-breaker, forger, jewel thief, and one of the cleverest 'gentleman' crooks, wanted by the police and also by criminal gangs. He follows another band of criminals, cracks their communication code, keeps outsmarting them and getting to their target before they do. Frank Packard (1877-1942) was a Canadian novelist best known for his Jimmie Dale mystery series. As a young man he worked as a civil engineer for the Canadian Pacific Railway. His experiences working on the railroad led to his writing a series of railroad stories and novels. Packard also wrote number of mystery novels, the most famous of which featured a character called Jimmie Dale, a wealthy playboy by day and a fearless crime fighter by night. Jimmie Dale novels brought the idea of a costume and mask for hero's secret identity, and also established the concept of a hero's secret hideout or lair.