Deep Burn by Kimberly Kincaid

Firefighter Shae McCullough is all-in, all the time. When her reckless response at a fire earns her a two-week penance filing paperwork for the arson investigation unit, the rules and routines are enough to bore her senseless. But the discovery of a possible arson at a murder scene has her instincts fired up, and when Shae is assigned to assist Remington’s elite intelligence unit with their investigation, she’s all too ready to jump in with both boots first.

To tech and surveillance expert James Capelli, logic isn’t just a job requirement, it’s a way of life. He’s less than thrilled to work with Shae, whose impulsiveness threatens his sanity and whose curves threaten his composure. Despite their differences, they uncover a case bigger than anyone could have expected—along with an attraction that burns deep.

But this killer is no stranger, and Capelli’s got a dark past. Can he and Shae outsmart a ruthless murderer, or will his secrets bury them both?