New York. City of millions. Home to the largest subway system in the world. Miles of tunnels stretch far underground, home themselves to a vast, displaced populace.
But now someone - or something - is slaughtering these homeless. And anyone else foolish enough to venture underground.
And whatever it is, it is slowly rising toward the surface.
Can a young empath, a finicky professor, and a flighty linguist stop the threat before it spills out into the rest of the city?
