2032. Two years after the civil war.When River Still arrives in Neo Vale, he finds a neighbourhood on edge. A mysterious blue vapour chokes its neon-lit streets. People are being taken in the night.And in the subway tunnels, behind a broken vending machine, a secret world suffers. A world built on a bizarre economy. A world torn apart by savage monsters, and superstition.The cellar has been opened, and none will survive.But what is really happening down there? And can River find out before it's too late?