A post-apocalyptic survival novel set beneath the ruins of London.

When nuclear fire consumed London in 2013, the survivors fled underground into the tunnels of the Tube.

Twenty five years later, the stations have become isolated civilizations ruled by fear, trade, violence, and fragile alliances.

Harvey Hunter, a hardened scout from North Greenwich, is drawn into a dangerous journey across the underground network after two couriers vanish without explanation, uncovering secrets buried both below and above the ruins of London.

But beneath the tunnels, something far more dangerous than war is beginning to move..