The rebuilding of the planetoid, then, went on. Roger had no reason to suspect that there was anything physically dangerous within hundreds of millions of miles. Nevertheless, since he knew that he could no longer depend upon his own mental powers to keep him informed as to all that was going on around him, it was his custom to scan, from time to time, all nearby space by means of ether-borne detectors. Thus it came about that one day, as he sent out his beam, his hard gray eyes grew even harder.
"Mirsky! Nishimura! Penrose! Come here!" he ordered, and showed them upon his plate an enormous sphere of steel, its offensive beams flaming viciously. "Is there any doubt whatever in your minds as to the System to which that ship belongs?"
"None at all—Solarian," replied the Russian. "To narrow
