A desperate late night phone call from Trilby Watkins embroils Annie Kirk in a fifty-year-old disappearance. Trilby, a friend from her college days, is trying to rejuvenate a health spa located in Oregon's High Cascade Mountains. Yet someone is determined to scare her off and she calls on Annie for help. When Annie, a successful mystery author, agrees to conduct a series of writing workshops at the resort, she is confronted by a maelstrom of the unexplained. What's behind chilling screams in the night and strange lights in the sky? Most perplexing of all, what's the connection between a mysterious rock sculpture in the backwoods and the decades old disappearance? Annie merges the past with the present to find answers.