21:00Mary Costello - The China FactoryEpisode 3: Things I SeeBBC Radio 4 Extra Duration: 15 minutes Wed 6th Feb 2013, 21:00 on BBC Radio 4 ExtraA woman is haunted by an event from her past which remains unchallenged. Tension-laden story read by Elaine Symons.GenresDramaDramaPsychologicalFormatsAudiobooksSeriesMary Costello - The China Factory Source: BBC Online