For a second, Emma couldn’t breathe. It had been six years. Six years, two months, and four days since her sons, Liam and Ethan, had disappeared from a crowded park in Boston. Six years of police reports that went cold, private investigators who found nothing, national news stories that faded from memory, and a quiet, suffocating grief that had settled into every corner of her life. She had replayed that day—the bright sun, the laughter, the moment she looked up from her phone to find their swings empty—until it drove her nearly insane.