Three books in Sarah Hawkswood's Bradecote and Catchpoll series are $0.99 each at Kindle US right now. And there is also an omnibus of the first five titles in the series available for just $5.99, which is also a pretty good price if you need all five, or at least, need most of them. Books in this series seem to go on sale a fair amount in the UK, less so in the US. I've read a few of the books in this series and liked all that I've read.
Servant of Death, #1
Kindle US:
https://www.amazon.com/dp/B01MYTU2FR
Hostage to Fortune, #4
Kindle US:
https://www.amazon.com/dp/B07R4BD6HT
Vale of Tears, #5
Kindle US:
https://www.amazon.com/dp/B07R4BCXW7
The Bradecote & Catchpoll series: Books 1, 2, 3, 4, 5 contains the three titles above and also
Ordeal by Fire, #2, and
Marked to Die, #3.
Kindle US:
https://www.amazon.com/dp/B0CLCZSDRC
Kobo US, where it is $6.99, not $5.99, but also discountable, bringing the price quite close to $5.99 if you have a coupon code or VIP membership:
https://www.kobo.com/us/en/ebook/the...tchpoll-series