gaping cracks grew across walls and ceiling like jagged vines and there had been many cave-ins. But there was also a tunnel, sloping upward steeply and with a fuzzy patch of gray light showing at its other end. In the robot's spotlight Ross could not tell whether the people of this level had dug their way out before they died or someone had dug down in an attempt to escape the holocaust above. He began climbing frantically, the Sister — whose three wheels were not suited to such a rough surface — falling slowly behind him.
He had to rest once, lying face downward on a slope of loose earth, rock and what looked like pieces of fused glass. There was a peculiar tang in the air which his nose, still inflamed by dust, refused to identify. With the lip of the tunnel only a few yards ahead, the dull, gray light was all around him. Ross thought that it was just his luck to pick dusk, or shortly after dawn, as his time to climb out. After a few minutes he pushed himself to his feet and began, wobbling and sliding, to run.
Ross looked slowly around him while the dark gray fog drove past, blackening his arms and clothing as he watched. To the limit of visibility, which was about fifty yards, the ground was dark gray and black — the smooth, shiny black of partly melted rock and the sooty gray of finely divided ash. The ash swirled and drifted from trough to trough in that frozen ocean of glass, or eddied upward to become the dry fog blowing past him. The sun was high in the sky, a dull red smudge with an enormous ring around it, and the sound of waves reached him from the half-mile-distant beach.
He had done a lot of swimming on that beach, alone, with other students, with Alice. Yelling and floundering and splashing for hours on end; "playing" was the only word which described that activity. And the sea had played, too — a trifle roughly, at times, considering that it was the vast, all-powerful mother of life on the planet and one of her most recent offspring was giving her cheek.
Ross began moving toward the beach. His brain seemed to be frozen with shock, because no time elapsed between the decision to go and his arrival.
The sun was a brighter red and visibility was up to half a mile — the breeze blowing in from the sea was relatively free of ash. But the great rollers which marched in were mountains of ink, and when they broke and roared, foaming, up the beach, the foam was dirty and left streaks of black and gray on the sand. The tidal pools were as warm and as numerous as he remembered, but all were lined by a thin film of black and nothing moved in them. There was no seaweed, no evidence of the green scum which collects in stagnant pools, nothing inside the most recently washed up seashells.
They had killed the sea, too.
Ross sat down on a rock which had been smoothed by the sea and given a mirror polish by the tiny sun which had come into being here, for a split second, over a century ago. He sat for a long time. It began to rain and the ash clouds which had obscured his view inland settled to the ground, disclosing a line of robots coming over the shoulder of the hill containing the tunnel mouth. He watched them for several minutes, wondering whether he should take off his ridiculous toga and dive for the last time into the breakers. But Ross was against suicide on principle. The world had ended, he was probably the last living human being, and the future held nothing but loneliness or madness. So it couldn't be hope which made him sit motionless while the dirty gray foam beckoned, for that had become a meaningless word. Perhaps it was because Ross was only twenty-two.
When the robots arrived and performed a neat encircling movement, the Ward Sister said, "You must return to bed, Mr. Ross." Seconds later a Cleaner lay his weakly resisting body along its back, pinioned him with five sets of metal arms and rolled back toward the tunnel mouth.
It took Ross several minutes to