Millhaven, Minnesota was a good town.

Neighbors knew each other's names. Kids rode bikes after dark. Then a video surfaced — a deepfake so convincing that by the time it was debunked, it didn't matter. The damage was done.

Within a week, the town split in two. Within a month, people were dead.

FBI Behavioral Analyst Maya Castillo arrives looking for what she always finds: the algorithm behind the violence, the system pulling the strings, the pattern that explains everything. She searches for the AI. She searches for the platform. She searches for the code.

There isn't one.

For the first time, the monster is just us. Scared people doing terrible things to other scared people. And Maya — who has spent years thinking like a machine — has to remember how to think like a human.

Book 4 in the Maya Castillo Series — for fans of Michael Crichton, Blake Crouch, and Dennis Lehane.