Book at Bedtime - Blackout in Gretley - Episode 10

Sensitive information is being leaked to the enemy. Humphrey Neyland has unmasked the majority of those involved in the network, but he still has to confront the man with the scar on his left cheek, who is posing as the butler to Colonel Tarlington. Anton Lesser concludes JB Priestley's atmospheric war-time thriller. Abridged and produced by Jane Marshall Productions for BBC Radio 4.