A few random price drops as part of the Kindle US Daily Deal, all matched at Kobo.
Murphy's Law, first in the Molly Murphy series by Rhys Bowen, $2.99.
I've quite liked the titles that I've read in this series, although not quite as much as Bowen's Lady Georgie series. They are a little less cute, though, if you find Lady Georgie to be over-the-top cute.
Kindle US:
https://www.amazon.com/Murphys-Law-M...dp/B003G83U6O/
Kindle US/Smile:
https://smile.amazon.com/Murphys-Law...dp/B003G83U6O/
Kobo US:
https://www.kobo.com/us/en/ebook/murphy-s-law-7
Stone Cold, fouth in the Jesse Stone series by Robert B. Parker of Spenser fame, $2.99
Kindle US:
https://www.amazon.com/Stone-Cold-Je...dp/B005F4ATWA/
Kindle US/Smile:
https://smile.amazon.com/Stone-Cold-...dp/B005F4ATWA/
Kobo US:
https://www.kobo.com/us/en/ebook/stone-cold-10
Many a Twist, sixth in the Maura Donovan/County Cork series by Sheila Connolly, another series I've enjoyed a few titles in, $1.99
Kindle US:
https://www.amazon.com/Many-Twist-Co...dp/B072LTRZXS/
Kindle US/Smile:
https://smile.amazon.com/Many-Twist-...dp/B072LTRZXS/
Kobo US:
https://www.kobo.com/us/en/ebook/many-a-twist-2
The Deeds of the Disturber, fifth in the Amelia Peabody series by Elizabeth Peters, $1.99 and coupon/VIPable at Kobo, awesome series IMO (and in the opinion of lots of others, I suspect), this one has been as low as $0.99 before, and not that long ago, so check carefully before you buy
links and info in this previous post:
https://www.mobileread.com/forums/sho....php?p=3611155