It was nearer now, rushing obliquely across his path. Would he be in time to capture it as it passed, or would it hurtle by ahead of him, and vanish in the limitless darkness of space before his feeble rocket could check the momentum of his ball of metal?

He peered at it, as it drew closer.

Its surface seemed oddly bright, silvery. Not the dull black of meteoric iron. And it was larger, more distant, than he had thought at first. In form, too, it seemed curiously regular, ellipsoid. It was no jagged mass of metal.

His hopes sank, rose again immediately. Even if it were not the mass of rich metal for which he had prayed, it might be something as valuable—and more interesting.

He returned to the rocket, adjusted the angle of the nozzle again, and advanced the firing time slightly, even at the risk of a ruinous explosion.

When he returned to where he could see the hurtling object before him, he saw that it was a ship. A tapering silver-green rocket-flier.

Once more his dreams were dashed. The officers of interplanetary liners lose no love upon the meteor miners, claiming that their collected masses of metal, almost helpless, always underpowered, are menaces to navigation. Thad could expect nothing from the ship save a heliographed warning to keep clear.

But how came a rocket-flier here, in the perilous swarms of the meteor belt? Many a vessel had been destroyed by collision with an asteroid, in the days before charted lanes were cleared of drifting metal.

The lanes more frequently used, between Earth, Mars, Venus and Mercury, were of course far inside the orbits of the asteroids. And the few ships running to Jupiter's moons avoided them by crossing millions of miles above their plane.

Could it be that legendary green ship, said once to have mysteriously appeared, sliced up and drawn within her hull several of the primitive ships of that day, and then disappeared forever after in the remote wastes of space? Absurd, of course: he dismissed the idle fancy and examined the ship still more closely.