15:00Sherlock HolmesThe Adventures of Sherlock HolmesEpisode 4: The Boscombe Valley MysteryBBC Radio 4 Extra Duration: 45 minutes Fri 3rd Jun 2011, 15:00 on BBC Radio 4 ExtraWhen a man is murdered, his blood-covered son stands accused. But the detective has his own theory. Stars Clive Merrison.GenresDramaCrimeBrandSherlock HolmesSeriesSherlock Holmes: The Adventures of Sherlock Holmes Source: BBC Online