I went into his room. The bed looked perfectly normal. I pressed down on the mattress. The frame and slats were intact.
“Maybe it’s the box spring,” I muttered.
As I ran my hand slowly across the center of the mattress, I felt it—something solid and rectangular beneath the padding.
My heart skipped.

I flipped the mattress over. At first glance, everything appeared fine. Then I noticed faint stitching near the middle—seams that didn’t match the factory pattern. The thread was slightly darker,