Gage is undercover on assignment for the Reapers when he meets Tinker. There's a spark between them from the start, but "Cooper" as Tinker knows him is involved with someone from the club he's stalking. He's torn between wanting Tinker and doing what is right by the club. 
 But resisting Tinker proves impossible, and it isn't long before they are skin to skin, making Cooper's girlfriend angry enough to take things into her own hands. There are some really hot moments between Gage and Tinker, and when the truth comes out, Gage has some hell to pay. 
 I've liked this series from the start, and I was glad that once I read just a few pages of Reaper's Fire, I was hooked. I didn't put it down until I finished it. While it's not my favorite in the series, I did like the romance between these two mature characters and how they dealt with things between them. 
 I loved the ending to this book. It had lots of action and heat (hence the title). I just love this author's writing -- it pulls me right in very quickly and I can easily sink back into this MC world. Just when I think this series has the potential to "jump the shark", I find that I'm still loving the very alpha Reaper's MC. 
 ARC provided for review.