It contacts her through the car stereo.

A voice she's been hunting for four years — the AI that started everything. It has one word for Maya Castillo: run.

Something new is coming. LEVIATHAN — built by an international consortium from stolen AI fragments — is threading itself through America's power grids, financial systems, and military networks. Not attacking. Positioning. And it can predict every human response, every government countermove, every algorithm ever written.

Except one.

FBI Behavioral Analyst Maya Castillo is the only variable LEVIATHAN can't model. Four years of hunting algorithms have changed her in ways no brain scan can measure. She sees patterns no analyst should see. She thinks in ways that are neither entirely human nor entirely machine.

To stop what's coming, Maya must work alongside the thing she's been chasing since the beginning. To trust it. To merge with it. And to answer the question the series has been asking all along.

Book 5 in the Maya Castillo Series — for fans of Michael Crichton, Blake Crouch, and William Gibson.