North By Northanger (Or, the Shades of Pemberley) by Carrie Bebris - Darcy and Elizabeth have a tough time finding peace and quiet. After the exhausting London season they've just endured, they only want to enjoy a quiet holiday at Bath before heading home to Pemberley to await the birth of their first child. While in Bath, however, they receive an invitation from Captain Tilney to visit him at Northanger Abbey on their way home. Apparently, their mothers were once good friends and Captain Tilney would like to renew the acquaintance. Their reception at Northanger Abbey is extremely odd, and within moments of their arrival they are wishing to be headed home. They do cut their visit with the Captain short, but at their next stop they are detained and find themselves accused of having stolen diamonds from the Abbey. Darcy must even spend some time in the jail. It appears that someone has gone to a great deal of trouble to implicate the Darcys. Desperate circumstances call for desperate measures, and Elizabeth contacts Lady Catherine DeBourgh for just such a favour. It is a mixed blessing indeed, for Lady Catherine does succeed in having Darcy released from the prison so they can return to Pemberley - but at the cost of the couple being subject to her as their chaperone. They continue to work to clear their names while at Pemberley, as they unravel clues about the friendship between Darcy's mother and Mrs Tilney. And all the while, Lady Catherine is trying Elizabeth's patience sorely.
This Darcy and Elizabeth mystery relied far less on supernatural occurrences or fantasy elements, but there is plenty of intrigue and deception; and Elizabeth's wit and good humour are greatly tested as her pregnancy advances and she must deal with stressful events and people, including Lady Catherine, Mrs Bennet, and her sister Lydia Wickham.
My comments from a previous read: North By Northanger
By the same author: The Intrigue at Highbury, The Matter at Mansfield, Suspense and Sensibility, Pride and Prescience