$4.99 isn't a great sale price, but I really like this author/series, and this is the most recent in series (2019), and the author's books rarely go on sale in the US, and it has been $13.99 until a day or two ago, so WTH, I'm posting it...
A Knife to the Heart, 21st in the Çetin Ikmen series by Barbara Nadel
Kindle US:
https://www.amazon.com/dp/B07DTBC9TP
Kobo US:
https://www.kobo.com/us/en/ebook/a-k...n-mystery-21-1