Cross post to the romance thread, where a bunch of Georgette Heyer titles, including lots (all?) of her mysteries have dropped to $2.99 at Kindle and Kobo US (coupon/VIPable).
link:
https://www.mobileread.com/forums/sh....php?p=3568737
As I mention in the other post, I don't quite trust the category sorts, so have just posted general links. If the romances don't interest you, you can just skip quickly past them - the cover styles are really different.