Grave Secrets
"In Philadelphia, Gavin's sister Cate goes missing, and her disappearance is linked to an enigmatic sorority invite. Gavin's search for clues takes him to Ricketts Glen State Park, where Park Ranger Samantha is investigating her own family tragedy--the unsolved disappearance of her uncle. As they piece together a complex puzzle, they unearth connections that lead them to a shadowy society operating in the area. Together, along with Gavin's brother Grayson, they find themselves entangled in a web of deceit and danger. As threats multiply, they're forced into a deadly showdown with a clandestine organization, willing to protect its secrets at any cost."--