Ooh, things are getting a bit murky now, as this superb thriller gathers pace.

Poor Laura is dreading the prospect of marrying smarmy Sir Percival, because she and Walter have fallen hook, line and sinker for each other.

But when Walter is unceremoniously dismissed from his post, it’s up to Marian to discover whether Sir Percival has something to hide and find out the truth about his involvement with Anne Catherick.

Once the shrewd baronet has managed to convince everyone that he’s a man of honour and a gentleman, he is determined to proceed with the wedding.

And he also seems very keen on enforcing a rather dodgy-sounding settlement concerning Laura’s fortune… Continues tomorrow.