Finally, at noon on the third day of their search, the welcome cry of "Land ho!" came down from the cro'nest. Captain Arms immediately set his course for the landfall, and in the course of a little more than an hour had it broad abeam.

"It's Everest, without question," said Cosmo. "It's the crown of the world."

But how strange was its appearance! A reddish-brown mass of rock, rising abruptly out of the blue water, really a kind of crown in form, but not more than a couple of square rods in extent, and about three feet high at its loftiest point.

There was no snow, of course, for that had long since disappeared, owing to the rise of temperature, and no snow would have fallen in that latitude now, even in mid-winter, because the whole base of the atmosphere had been lifted up nearly six miles.

Sea-level pressures were prevailing where the barometric column would once have dropped almost to the bottom of its tube. It was all that was left of the world!

North of them, under the all-concealing ocean, lay the mighty plateau of Tibet; far toward the east was China, deeply buried with its 500,000,000 of inhabitants; toward the south lay India, over which they had so long been sailing; northwestward the tremendous heights of the Pamir region and of the Hindu-Kush were sunk beneath the sea.

"When this enormous peak was covered with snow," said Cosmo, "its height was estimated at 29,002 feet, or almost five and three-quarter miles. The removal of the snow has, of course, lowered it, but I think it probable that this point, being evidently steep on all sides, and of very small area, was so swept by the wind that the snow was never very deep upon it.

"If we allow ten, or even twenty feet for the snow, the height of this rock cannot be much less than 29,000 feet above the former sea-level. But I do not dare to approach closer, because Everest had a broad summit, and we might possibly ground upon a sharp ridge."

"And you are sure that the water is still rising?" asked De Beauxchamps again.

"Watch and you will see," Cosmo responded.