Grave Instinct — Bev Pettersen

Now a USA Today Bestseller!BELATED JUSTICE CAN BE THE MOST SATISFYING. For almost ten years, Nikki Drake struggled to deal with her sister's mysterious disappearance. When another teen vanishes from the same riding stable, the details are too eerily similar to ignore, and she vows to uncover the truth.No longer a child but a newly minted private investigator, she now has additional weapons in her arsenal, including a re-homed police dog and an enigmatic detective with ties to the horse stable. However, digging into her sister's case erodes old trusts and brings dark secrets bubbling to the surface.And this time they could be fatal...for her.