And, suddenly, a screen glowed faintly, and then another.... Then there was a greenish glow in the ports, and Dona looked out and down. Above was that blackness, complete and absolute. But below, seen with utter clarity, because of the absence of atmosphere, lay a world. Nothing grew upon it. Nothing moved. It was raw, naked rock with an unholy luminescence. Here and there the glow was brighter where mineral deposits contained more highly active material. The surface was tortured and twisted, in swirled stained writhings of formerly melted rock. They looked. They saw no sign of human life nor any sign that humans had ever been there. But after all, even five thousand years of mining on a globe six thousand miles through would not involve the disturbance of more than a fraction of its surface. "We did it," said Kim. "The shield can be broken through by anything with a strong enough magnetic field. We won't disturb the local inhabitants. They undoubtedly have orders to kill anybody who incredibly manages to intrude. We can't afford to take a chance. We've got to get back to Ades!" He pointed the _Starshine_ straight up. He drove her, slowly, at the ceiling of impenetrable black. He worked upon the transmitter-drive relay. He adjusted it to throw the _Starshine_ into transmitter-speed the instant normal starlight appeared ahead. The ship swam slowly upward. Suddenly there was a momentary impression of reeling, dancing stars. Kim swung the bow about. "Now for Ades!" he said gleefully. "Did you know, Dona, that once upon a time the word Ades meant hell?" The stars reeled again.... They found Ades. Knowing how, now, it was not too difficult. There were two positions from which it could be detected. One was a position in which it was on a line between the _Starshine_ and the sun. The other was a position in which the invisible planet, the space-ship, and the sun formed the three points of a right-angled triangle with Ades in the ninety-degree corner. Kim sent the little ship in a great circle beyond the planet's normal orbit, watching for it to appear where such an imaginary triangle would be formed. The deflected light of the sun would spread out in a circular flat thin plane, and somewhere about the circuit the _Starshine_ had to run through it. It would be a momentary sight only, and it would not be bright; it would be utterly unlike the steady radiance of a normal planet. Such flashes, if seen before, would have been dismissed as illusions or as reflections from within the ship. Even so, it was a long, long time before Dona called out quickly. "There!" she said, and pointed.