Fire and Ice by JA Jance features both Joanna Brady (14th book) and JP Beaumont (19th book). It's £1.99 at Kindle UK right now. Jance's books don't go on sale all that often, so grab it now if you want it!
Kindle UK:
https://www.amazon.co.uk/dp/B0044DE99M
Kindle UK/Smile:
https://smile.amazon.co.uk/dp/B0044DE99M