In Arizona, above a blind canyon surrounded by rugged cliffs, lies the lost city of Tok Wami-a dark place created years before by rebellious Native American witches. Though the city lies in ruins, something stirs there. Dreams and visions speak to the shamans in the Great Gathering of creatures of the night-creatures called the Lieuw. But clues are found not just in dreams and visions. A man named Asa Fox has a strange tale to tell. At Twoleaf"s Bar near Shiprock, Bertram Twoleafs and his cousin Gordon Smythe speak to a frightened old man, Navajo Joe, who tells the story of the Night Cloak. The news that three black panthers have escaped from an Arizona zoo goes out over the airwaves. People are asked not to harm the animals but report them to authorities; Animal Control will handle the recapture. Bodies are found crushed beyond recognition, pets simply disappear. Something is sweeping through the Southwest, and no one is safe-not the rich and powerful, nor the humblest civil servant....