North By Northanger, or The Shades of Pemberley
After the excitement of their recent Season in London, the Darcys are eager to reach Pemberley. The look forward to spending a peacful time enjoying Elizabeth's first pregnancy. However, such serene solitude is not meant to be. First a mysterious letter from the long-deceased Lady Anne Fitzwilliam Darcy is discovered. Then, a summons to Northanger Abbey involves the young couple in intrigues that threaten not just the Darcy legacy and good name, but quite possibly Darcy's freedom as well. Making matters even worse for the newly expectant mother, Darcy's overbearing Aunt Catherine de Burgh arrives to further bedevil Elizabeth. Adding to all of the madness are rumors of treasure and past scandals. Pemberley is not the quiet estate the Darcys envisioned. Rather, it is home to secrets and spirits of the past, whose revelations can have a chilling effect on not only the Darcys but on their growing family. (from the back cover of the book - this is the third book in Bebris's Mr. and Mrs. Darcy Mysteries series)