Cross post to @Blossom's post in the Romance thread, where the Nook Book Bash sale is offering a lot of first (or second) in series titles for free right now, with coupon. Mostly romances, but there is a Mystery category, which has 31 titles. A lot of titles that are author-reclaimed re-pubs, some traditionally pubbed authors who have self-pub series on the side, and some that look self-pub, but higher quality self-pubs. A few authors I recognized included Carole Nelson Douglas, Terry Odell, Joanne Pence, Emma Jameson, Sara Rosett. There were also a few paranormal or more suspence-ish titles where I wouldn't recognize authors.
Anyway, they are free, so worth taking a look.
Sadly, if you hate Nook and its download issues, I checked a handful of titles and didn't see them matched at Kindle or Kobo US, at least as of yet.
Link for the post:
https://www.mobileread.com/forums/sh....php?p=3803025