From my hotel room, I kept glancing at the app. Each time, it was a comfort—until one moment, when I saw something I couldn’t explain. Emma wasn’t alone. A woman I didn’t recognize was in the nursery, gently rocking her.Panic surged.

She wasn’t family, and we don’t have relatives nearby. I called Mark immediately. At first, he was confused—he’d been in his office with headphones on. Then he rushed to the nursery and saw the woman himself.