A bunch of Georgette Heyer's books are cheap. Latest reduction is "The Foundling".
Price changes are frequent, so maybe bookmark this
https://www.amazon.co.uk/kindle-dbs/...SelectorHeader
Search Low to High.
Not all the Regency books are overloaded with Regency Cant if you don't like it. Two of the detective/mystery are or were reduced. Some titles are more Historical and one is an early book she "unpublished" when she became successful.
Some have abysmal HTML/CSS. More original covers can be downloaded via Calibre. We don't like the new style photographic with Bridgerton stickers.