5/10 Speaking to Lady Audley's ex-maid provokes a surprise.
4/6 The Roman sleuth sets off with raw recruits to cross the Rhine into Barbarian territory.
BBC Radio 4 Extra
4/10 With George missing, Robert heads to Southampton, but the answer lies at Audley Court.
3/6 In Germany, the Roman sleuth learns the legion's legate Gracilis is missing.
3/10 Robert invites George to meet his uncle's young wife. But she's reluctant to receive them.
2/6 The detective witnesses the aftermath of a crime, and gets a hostile welcome in Germany.
2/10 Young lawyer Robert bumps into an old friend, back from making his fortune in Australia.
1/6 The Roman sleuth heads to Germany's Barbarian forests, home to a giant bull.
1/10 Lucy Graham gains all the wealth she desires when she marries widower Sir Michael Audley.
4/4 McLevy sets out to prove that a celebrated stage magician is a jewel thief.