It happens quietly one August morning. As dawn's shimmering light drenches the humid Iowa air, two families awaken to find their little girls have gone missing in the night. Seven-year-old Calli Clark is sweet, gentle, a dreamer who suffers from selective mutism brought on by tragedy that pulled her deep into silence as a toddler. Calli's mother, Antonia, tried to be the best mother she could within the confines of marriage to a mostly absent, often angry husband. Now, though she denies that he