PRELUDE: The Thirteen-Year Thaw

Chill winds still blew. Dusty snow fell. But the ancient sea was in no hurry.

The Earth had spun six thousand times since flames blossomed and cities died. Now, after sixteen circuits of the Sun, plumes of soot no longer roiled from burning forests, turning day into night.

Six thousand sunsets had come and gone-gaudy, orange, glorious with suspended dust-ever since towering, superheated funnels had punched through to the stratosphere, fitting it with tiny bits of suspended rock and soil. The darkened atmosphere passed less sunlight-and it cooled.

It hardly mattered anymore what had done it-a giant meteorite, a huge volcano, or a nuclear war. Temperatures and pressures swung out of balance, and great winds blew.

All over the north, a dingy snow fell, and in places even summer did not erase it.

Only the Ocean, timeless and obstinate, resistant to change, really mattered. Dark skies had come and gone. The winds pushed ocher, growling sunsets. In places, the ice grew, and the shallower seas began to sink.

But the Ocean’s vote was all important, and it was not in yet.

The Earth turned. Men still struggled, here and there.

And the Ocean breathed a sigh of winter.