"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. Petra Gregory is Calli's best friend, her soul mate and her voice. But neither Petra nor Calli has been heard from since their disappearance was discovered. Now these families are tied by the questions of what happened to their children. And the answer is trapped in the silence of unspoken family secrets."--p. [4] of cover.