Churchyard and Hawke — E.V. Thompson

 

After taking a serious beating while engaged in unofficial undercover work in London's 19th century slums, Constable Tom Churchyard takes himself to Cornwall. Here, in spite of his injuries he becomes right-hand man to Amos Hawke, now a senior Cornish policeman. His knowledge of the London rogues proves invaluable as Amos seeks to foil a gang of city thieves -- and then a brutal murder is committed during their investigations.