Sarah Crowe left Atlanta, and the remnants of a tumultuous relationship, to live alone in an old house in rural Rhode Island. Within its walls she discovers an unfinished manuscript written by the house's former tenant—a parapsychologist obsessed with the ancient oak growing on a desolate corner of the property. And as the gnarled tree takes root in her imagination, Sarah risks her health and her sanity to unearth a revelation planted centuries ago…