Boneyard Ridge

This is an Apple Books audiobook narrated by a digital voice based on a human narrator.
Completing his latest assignment could impact investigator Hunter Bragg's future. But only if he can keep Susannah Marsh alive. 

All Hunter Bragg wanted in Purgatory, Tennessee, was a little peace of mind. A private investigator plagued by his own guilt, he never imagined his next job would resurrect old demons. Targeted by an anarchistic militia group, events planner Susannah Marsh is his next mission: keep her close…keep her alive. But Susannah has a secret. A secret that will reveal the true motive of her potential assailants. For Hunter, being Susannah's protector soon becomes more than just a job. And in order to succeed, there can be no half measures. With undeniable attraction simmering between them, he's determined not to let the promise of a better future fall into the hands of ruthless predators.