Two Joffe free books this Friday - one looks kind of thriller-ish and the other says it's a police procedural. (You can probably guess which is which, just from the titles...

)
Shannon's Gamble, by Paul Bennett, is the seventh in the Nick Shannon series
Kindle US:
https://www.amazon.com/dp/B0C23XH81D
Kindle UK:
https://www.amazon.co.uk/dp/B0C23XH81D
Murder at the Nineteenth, by JM Gregson, is the first in the Lambert and Hook series
Kindle US:
https://www.amazon.com/dp/B0C69KG87L
Kindle UK:
https://www.amazon.co.uk/dp/B0C69KG87L
Usually good through the weekend, but not guaranteed...