There has been some speculation that she’s an obvious pseudonym becuase Harriet Vane is the name of Lord Peter Whimsey’s paramour in Dorothy L Sayers’ mysteries. But surely if it were Caroline she’d have confronted the Grundies by now (even though this would involve casting a new Caroline since the sad passing of Sara Coward)?
I do hope this isn’t going to be one of those dangling storylines that never gets resolved!
I just checked and maybe it is Lynda. Her conversation with Robert in the café would make sense if he already knew she was using a pseudo name. She would be quite capable of denying it to Emma. If it is not her, bet she wishes she had thought of it.