Not really a continuation, but if you like the Jane Austen and the Regency period, you may be amused by the Jane Austen as detective mysteries, by Stephanie Barron. See the first one, Jane and the Unpleasantness at Scargrave Manor: Being the First Jane Austen Mystery (
http://www.amazon.com/Jane-Unpleasan...9475184&sr=1-3).
Edited to add: Barron does a good job with speech patterns, etc. of the Regency period.