A couple of other drops to £0.99 at Kindle UK:
Y is for Yesterday, in the Kinsey Millhone series by Sue Grafton:
https://www.amazon.co.uk/dp/B071RRRPV7
The Return of Mr Campion: 13 Collected Stories by Margery Allingham:
https://www.amazon.co.uk/dp/B07PGJ38F2