Ashley Gardner (along with Allyson James, a pen name for Jennifer Ashley) put out her backlist via Smashwords a couple of years back. See these MR threads:
https://www.mobileread.com/forums/sho...d.php?t=165886
and
https://www.mobileread.com/forums/sho...d.php?t=139955
Now there is a bundle of the first three novels in the series, all previously published in DTB by Berkeley, and two magazine-published short stories, available on Amazon and BN for $4.99. The price for all would be $6.96 if purchased separately. I didn't find it on Kobo, BoB, or Smashwords, where it might have been couponable or discountable. Still, if you don't have any of these, you get a bit of a discount via the bundle.
I read some of these many years ago in DTB and the rest more recently in ebook, and have enjoyed the series. I like historical mysteries and that is what these are - Regency period. They are a bit darker than many historical mysteries, not cozies, but not blood & gore-ish either - just a bit dark.
Amazon:
http://www.amazon.com/Captain-Lacey-...dp/B006YZ0OOM/
BN:
http://www.barnesandnoble.com/w/capt...ner/1108485755
Oh yeah, and this is called "Volume 1" which sort of implies there might be a "Volume 2" someday, but not so far...