And as Chloe and I pulled the front door shut behind us for the last time, I saw Zachary turn his head, slowly, toward the small black lens tucked between the books.

Chapter 15 — What the Footage Showed

I was not in the house for what happened next.

Zachary told me the shape of it, much later, in a parking lot, with his voice coming apart.

But I have pieced it together, and I will set it down here, because it is his reckoning and he earned every second of it.

He opened the security app on his phone and pulled up the playback.

His ex-wife rushed to his side.