4/6 The Roman sleuth sets off with raw recruits to cross the Rhine into Barbarian territory.
BBC Radio 4 Extra
5/10 Speaking to Lady Audley's ex-maid provokes a surprise.
2/2 Eighteenth-century architect Nicholas Dyer is under suspicion.
5/6 The Roman detective is worried when the prisoners finally meet legendary priestess Veleda.
6/10 Robert Audley gets closer to the truth in his quest to uncover Lady Audley's secret.