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5/5 The blind sleuth comes face-to-face with some old adversaries.
BBC Radio 4 Extra
4/5 The blind sleuth investigates a series of thefts from a notoriously impregnable bank.
3/5 The blind amateur sleuth investigates a man's electrifying plot to murder his wife.
2/5 The blind sleuth tackles a train crash. Was it an accident or something more nefarious?
1/5 Old friend Louis Carlyle approaches the blind sleuth to solve a case of forgery.