Out over the incredible mausoleum of civilization they peered. Now and again they fortified their vision by recourse to the telescope.

Nowhere, as he had said, was any slightest sign of life to be discerned. Nowhere a thread of smoke arose; nowhere a sound echoed upward.

Dead lay the city, between its rivers, whereon now no sail glinted in the sunlight, no tug puffed vehemently with plumy jets of steam, no liner idled at anchor or nosed its slow course out to sea.

The Jersey sh.o.r.e, the Palisades, the Bronx and Long Island all lay buried in dense forests of conifers and oak, with only here and there some skeleton mockery of a steel structure jutting through.

The islands in the harbor, too, were thickly overgrown. On Ellis, no sign of the immigrant station remained. Castle William was quite gone.

And with a gasp of dismay and pain, Beatrice pointed out the fact that no longer Liberty held her bronze torch aloft.

Save for a black, misshapen ma.s.s protruding through the tree-tops, the huge gift of France was no more.

Fringing the water-front, all the way round, the mournful remains of the docks and piers lay in a mere sodden jumble of decay, with an occasional hulk sunk alongside.

Even over these wrecks of liners, vegetation was growing rank and green. All the wooden ships, barges and schooners had utterly vanished.

The telescope showed only a stray, lolling mast of steel, here or yonder, thrusting up from the desolation, like a mute appealing hand raised to a Heaven that responded not.

"See," remarked Stern, "up-town almost all the buildings seem to have crumbled in upon themselves, or to have fallen outward into the streets. What an inconceivable tangle of detritus those streets must be!

"And, do you notice the park hardly shows at all? Everything's so overgrown with trees you can't tell where it begins or ends. Nature has her revenge at last, on man!"

"The universal claim, made real," said Beatrice. "Those rather clearer lines of green, I suppose, must be the larger streets. See how the avenues stretch away and away, like ribbons of green velvet?"

"Everywhere that roots can hold at all, Mother Nature has set up her flags again. Hark! What's that?"

A moment they listened intently. Up to them, from very far, rose a wailing cry, tremulous, long-drawn, formidable.

"Oh! Then there _are_ people, after all?" faltered the girl, grasping Stern's arm.

He laughed.

"No, hardly!" answered he. "I see you don't know the wolf-cry. I didn't till I heard it in the Hudson Bay country, last winter--that is, last winter, plus X. Not very pleasant, is it?"

"Wolves! Then--there are--"

"Why not? Probably all sorts of game on the island now. Why shouldn't there be? All in Mother Nature's stock-in-trade, you know.

"But come, come, don't let that worry you. We're safe, for the present. Time enough to consider hunting later. Let's creep around here to the other side of the tower, and see what we can see."

Silently she acquiesced. Together they reached the southern part of the platform, making their way as far as the jumbled rocks of the fallen railing would permit.

Very carefully they progressed, fearful every moment lest the support break beneath them and hurl them down along the sloping side of the pinnacle to death.

"Look!" bade Stern, pointing. "That very long green line there used to be Broadway. Quite a respectable Forest of Arden now, isn't it?" He swept his hand far outward.

"See those steel cages, those tiny, far-off ones with daylight shining through? You know them--the Park Row, the Singer, the Woolworth and all the rest. And the bridges, look at those!"

She shivered at the desolate sight. Of the Brooklyn Bridge only the towers were visible.

The watchers, two isolated castaways on their island in the sea of uttermost desolation, beheld a dragging ma.s.s of wreckage that drooped from these towers on either sh.o.r.e, down to the sparkling flood.

The other bridges, newer and stronger far, still remained standing.

But even from that distance Stern could quite plainly see, without the telescope, that the Williamsburg Bridge had "buckled" downward and that the farther span of the Blackwell's Island Bridge was in ruinous disrepair.

"How horrible, how ghastly is all this waste and ruin!" thought the engineer. "Yet, even in their overthrow, how wonderful are the works of man!"

A vast wonder seized him as he stood there gazing; a fierce desire to rehabilitate all this wreckage, to set it right, to start the wheels of the world-machinery running once more.

At the thought of his own powerlessness a bitter smile curled his lips.

Beatrice seemed to share something of his wonder.

"Can it be possible," whispered she, "that you and--and I--are really like Macaulay's lone watcher of the world-wreck on London Bridge?"

"That we are actually seeing the thing so often dreamed of by prophets and poets? That 'All this mighty heart is lying still,' at last--forever? The heart of the world, never to beat again?"

He made no answer, save to shake his head; but fast his thoughts were running.

So then, could he and Beatrice, just they two, be in stern reality the sole survivors of the entire human race? That race for whose material welfare he had, once on a time, done such tremendous work?

Could they be destined, he and she, to witness the closing chapter in the long, painful, glorious Book of Evolution? Slightly he shivered and glanced round.

Till he could adjust his reason to the facts, could learn the truth and weigh it, he knew he must not a.n.a.lyze too closely; he felt he must try not to think. For _that_ way lay madness!

Far out she gazed.

The sun, declining, shot a broad glory all across the sky. Purple and gold and crimson lay the light-bands over the breast of the Hudson.

Dark blue the shadows streamed across the ruined city with its crowding forests, its blank-staring windows and sagging walls, its thousands of gaping vacancies, where wood and stone and brick had crumbled down--the city where once the tides of human life had ebbed and flowed, roaring resistlessly.

High overhead drifted a few rosy clouds, part of that changeless nature which alone did not repel or mystify these two beleaguered waifs, these chance survivors, this man, this woman, left alone together by the hand of fate.

They were dazed, fascinated by the splendor of that sunset over a world devoid of human life, for the moment giving up all efforts to judge or understand.

Stern and his mate peered closer, down at the interwoven jungles of Union Square, the leafy frond-ma.s.ses that marked the one-time course of Twenty-Third Street, the forest in Madison Square, and the truncated column of the tower where no longer Diana turned her huntress bow to every varying breeze.

They heard their own hearts beat. The intake of their breath sounded strangely loud. Above them, on a broken cornice, some resting swallows twittered.

All at once the girl spoke.

"See the Flatiron Building over there!" said she. "What a hideous wreck!"

From Stern she took the telescope, adjusted it, and gazed minutely at the shattered pile of stone and metal.

Blotched as with leprosy stood the walls, whence many hundreds of blocks had fallen into Broadway forming a vast moraine that for some distance choked that thoroughfare.

In numberless places the steel frame peered through. The whole roof had caved in, crushing down the upper stories, of which only a few spa.r.s.e upstanding metal beams remained.