The trouble always has been that you're never ready, because you don't know when it's coming. Well, now we do know and there's nothing to be done about it."

He says he will be dead by September. It will take about a week to die, though no one can be sure. Animals live the longest.

The war was over in a month. The United States, Russia and China were the protagonists. It is not clear if it was started by accident or mistake. There was no victor. The northern hemisphere is contaminated and lifeless now.

A curtain of radioactivity is moving south towards Australia and New Zealand, southern Africa and South America. By September, the last cities, towns and villages will succumb. As in the north, most buildings will remain untouched, some illuminated by the last flickers of electric light.