"One rainy night fifteen years ago, a knock at the door changed Liss Kehoe's life forever. On that night, Ashley Hay stood on Liss's front porch and handed over her brand-new baby Callan. She was never seen or heard from again. Since then, Liss has raised Callan as her own, and loves him as fiercely as any mother would. But in the back of her mind, she's always wondered whether Ashley is still out there somewhere--and feared what might happen if she...