Credo's Bones — Alison Naomi Holt

To Detective Alexandra Wolfe, the human bone sticking out of the toilet in the camper isn't any big deal. She needs to check out a very old bone in a very old camper…what could go wrong? It seems routine enough, until she finds a police badge buried in the camper's holding tank. When she learns the badge belonged to her sergeant's partner, who'd been buried with full honors -- along with his badge -- some seven years earlier, she knows she's stumbled on a mystery that's been waiting years to be solved. She has some digging to do. She can feel it in her bones.