Computer games run in a classified war studies centre in London. Nuclear submarines prowl beneath Arctic ice. And war games go into real time. Patrick Armstrong—possibly the same reluctant hero of The IPCRESS File—is sent to investigate. Patrick Armstrong is a tough, dedicated agent and war-games player. But in Armstrong's violent, complex world, war-games are all too often played for real. Soon the chase (or is it escape?) is on. From the secretive computerized college of war studies in London via a bleak, sinister Scottish redoubt to the Arctic ice cap where nuclear submarines prowl ominously beneath frozen wastes, a lethal web of violence and double-cross is woven. And Europe's whole future hangs by a deadly thread...