A Few Right Thinking Men is the first in Sulari Gentill’s Rowland Sinclair historical (WWII) series. It’s on sale in the US for $1.99 (and discountable at Kobo US), and it’s also £1.99 at Kindle UK.
I’ve never gotten into this series because almost all of the rest of the titles, with the occasional exception of the second one, are normally priced in the $9.99 – $12.99 (!!!) range. And I almost never pay that much for a book, unless it’s required for a class 🙂 or meeting some other very unusual need. But they all have pretty good ratings, and I have a friend who likes the series, and Poisoned Pen Press books are usually pretty good IMO, so YMMV.
And I also just noted, though, while checking things out for this post, that in the UK, the rest of the series mostly ranges from £2.99 to £3.99. Which is a lot more reasonable. And not surprisingly, there’s a different publisher…
Oh, and in the UK, there’s also a free prequel novella/short book. I couldn’t find it in the US – maybe that publisher thing…
The Prodigal Son, Rowland Sinclair #0: https://www.amazon.co.uk/dp/B073X92KJH
A Murder Unmentioned is the sixth in the Rowland Sinclair series. It’s $1.99 right now in the US, and discountable at Kobo US…
Kindle US: https://www.amazon.com/dp/B07N1RTKKQ
Kobo US: https://www.kobo.com/us/en/ebook/a-murder-unmentioned-5
A Few Right Thinking Men is $0.99 right now at Kindle US, but not on sale elsewhere, at least as of now. Although it does seem to be semi-long-term priced at £1.99 in the UK, which is not bad either. The links in the OP are still good.