I've mentioned liking Barbara Nadel's Inspector Ikmen series before, and now here is the nineteenth in the series,
The House of Four, which has just dropped to £1.99 at Kindle UK.
And actually, when I looked at the entire series in both the US and UK, I found that most of the titles are pretty reasonably priced at $3.99/£3.99, with a few higher, and a few lower. So if you like the series, you don't have to spend a lot to binge read! (Oddly, the first couple of titles are among the most expensive, before the third one, which is among the least expensive - you'd think whoever's doing the marketing might be a little smarter...)
The House of Four:
Kindle UK:
https://www.amazon.co.uk/dp/B01D8ZE2LQ
Kindle UK/Smile:
https://smile.amazon.co.uk/dp/B01D8ZE2LQ
series webpages:
Kindle US:
https://www.amazon.com/dp/B074C6J72K...kindle_edition
Kindle US/Smile:
https://smile.amazon.com/dp/B074C6J7...kindle_edition
Kindle UK:
https://www.amazon.co.uk/dp/B074C6J7...kindle_edition
Kindle UK/Smile:
https://smile.amazon.co.uk/dp/B074C6...kindle_edition