Down they sank. As they came nearer a curious pinkish tint began to show beneath them. Shortly it became more noticeable; the doctor gave a sudden grunt of satisfaction, and Smith stopped the car.
A minute later the doctor had taken a sample of the surrounding ether through his laboratory test-vestibule; and shortly announced that they were now floating in air instead of space.
"Good deal like ours back home, too"—exultingly. "Pretty thin, of course." He made a short calculation, referring to the aneroid barometer which was mounted on the outer frame of a window, and said he judged that their altitude was about five miles.
The descent continued, Smith using the utmost caution. The other three kept their eyes glued to the deadlight; and their mystification was only equaled by their uneasiness as that motionless, bleary glaze failed absolutely to show anything they had not seen a thousand miles higher. Not a single detail!
"It reminds me," said the girl in a low voice, "of something I once saw from the top of a hill. It was the reflection of the sun from the surface of a pond; not clear water, but covered with—"
"Good Heavens!" interrupted Van Emmon, struck with the thought. "Can it be that the whole planet is under water?"
Beyond a doubt his guess was justified. There was an oily smoothness about that dazzling haze which made it remarkably like a lake of still and rather dirty water under a bright sun.
But the doctor said no. "Any water I ever heard of would make clouds," said he; "and we know there's air enough to guarantee plenty of wind. Yet nothing seems to be in motion." He was frowning continually now.
It was Billie who first declared that she saw the surface. "Stop," she said to Smith evenly, and he instantly obeyed. All four gathered around the deadlight, and soon agreed that the peculiarly elusive skin of the planet was actually within sight. However, it was like deciding upon the distance of the moon—as easy to say that it were within arm's reach as a long ways off.
The doctor went to a window. There he could look out upon the sun, a painfully bright object much larger than it looks from the Earth. It was just "ascending," and half of it was below the horizon. A blinding streak of light was reflected from a point on the surface not far from the cube. Shading his eyes with his hand the doctor could see that the mysterious crust was absolutely smooth.