Somewhere northward in the broken fastnesses lay hidden a valley walled in from the world. Would they be there, those lost fugitives whose story had thrilled him? After twelve years would she be alive, a child grown to womanhood in the solitude of a beautiful canyon? Incredible! Yet he believed his friend's story and he indeed knew how strange and tragic life was. He fancied he heard her voice on the sweeping wind. She called to him, haunted him. He admitted the improbability of her existence, but lost nothing of the persistent intangible hope that drove him. A beautiful rainbow filled with mystery and promise prompts John Shefford's singular journey beyond the Utah upland into a wild canyon laden with a haunting secret. But to reach it, Shefford has to go through a Mormon village, where trespassing means death, and confront a treacherous outlaw who blocks the way.