My eight-year-old daughter slept alone, but every morning she said her bed felt “too small.” I thought it was just fear, until I checked the camera at 2:00 a.m. and saw a boy climb out of the closet to lie down next to her. I didn’t scream. I didn’t breathe. I just stood frozen in front of the screen, hand over my mouth, watching as my little Sophie drifted to one side in her sleep as if she were already used to it.

Andrew tightened his hand around the rusted key.

“Go back downstairs,” he said. “You’re sleepwalking again.”

Sleepwalking. That was what he called my grief. That was what he called every night I woke up swearing I’d heard Matthew’s voice in the hallway, every time I stopped to stare at an abandoned construction site, every time I set an extra plate at the table out of habit.