20:45R Austin Freeman - Thorndyke, Forensic InvestigatorSeries 1Episode 3: A Mystery of the Sand HillsBBC Radio 4 Extra Duration: 15 minutes Thu 24th Nov 2011, 20:45 on BBC Radio 4 ExtraThe detective investigates the case of a missing swimmer, and discovers a devious and gruesome crime. Read by Jim Norton.GenresDramaCrimeBrandR Austin Freeman - Thorndyke, Forensic InvestigatorSeriesR Austin Freeman - Thorndyke, Forensic Investigator: Series 1 Source: BBC Online