I slept with my ex-wife again on a business trip, and at dawn, a red stain on the sheet left me breathless. A month later, a call from a hospital in San Diego made me realize that that night hadn’t been a mistake… but the beginning of something much darker.

Greg put his hand to his face, completely shocked. “Are you out of your mind?”

Sarah let out a broken, hollow laugh. “No. That was the next step, wasn’t it? First my mother. Then me.”

The phrase stayed with me. Because for the first time all night, I understood the scale of what my girl had allowed herself to overlook—and the scale of what they were preparing for her. Predators never stop at one prey. They just move on to the next room.