2/5 Helen Scales considers human use of shells - as fertility symbols, jewellery and currency. (R)
BBC Radio 4
2/10 Esther is still in shock after her first meeting with Mr Chartwell, her prospective lodger
BBC Radio 4 Extra
3/5 Helen Scales shines a light on the bizarre world of the hermit crab.
BBC Radio 4 FM only
3/3 The mystery deepens for Bill when he meets Tom.
3/10 Mr Chartwell has promised to tell Esther more about himself.
Anna Maxwell Martin reads Mole's Sunrise, by Jeanne Willis and Sarah Fox-Davies. (R)
8/10 Claude tries to get over Ariadne, but Paul pretends they are lovers to get a dinner invite
3/5 Helen Scales shines a light on the bizarre world of the hermit crab. (R)