20:00Sherlock HolmesHis Last BowEpisode 2: The Cardboard BoxBBC Radio 4 Extra Duration: 45 minutes Mon 5th Dec 2011, 20:00 on BBC Radio 4 ExtraThe sleuth probes a spinster's grisly surprise in the post - two severed human ears. Stars Clive Merrison and Michael Williams.GenresDramaCrimeBrandSherlock HolmesSeriesSherlock Holmes: His Last Bow Source: BBC Online