In 1877, Emma Hart comes to Grand Canyon--a wild, rugged, and, until recently, undiscovered area. Plagued by visions and gifted with a second sight, she searches for answers about the tragedy of her past, the betrayal of her present, and an elusive future that echoes through her very soul. Joined by her power animal Sparrow, she ventures into the depths of Hopi folklore, forced to confront an evil that has lived through the ages.Texas Ranger Nathan Blackmore tracks Emma Hart to the Colorado River, stunned by her determination to ride a wooden dory along its course. But in a place where the ripples of time run deep, he'll be faced with a choice. He must accept the unseen realm, the world beside this world, that he turned away from years ago, or risk losing the woman he has come to love more than life itself.