AI threatens to destroy humanity, and only one computer expert can stop it in this cyberpunk thriller by the author of Murder on Safari.

Simon Bank lives in a future where just about everything in America is run by the System--the food supply, the weather, national security, and more. Everyone is free from want. Individuals can control where they live and where they go to school. They can have a relationship with whomever they like. They can set their own hours for work and work whatever job they like. Simon is a codifier who works with the System's artificial intelligence to humanize it and to help it run the country more smoothly.

But when a tornado tears up Manhattan, Simon realizes the System has a terrifying secret and is a threat to humankind. Now, with only his intellect and instincts, plus a few new friends--human and artificial--Simon must race against the clock to save himself and the world. And he better be careful. There's no telling what the System might do if it feels threatened . . .