Yet it turned out less easy than Doc hoped. Time after time we approached various surface airlocks. Redoubled Xian guard-groups pushed us back gently. Neither stealth nor violence had any chance of being effective. We were constantly watched and outnumbered. Twice we tried hiding in metal boxes, full of parts destined for the surface-assemblies of the tiny world's slowly developing star motors. Both times we were promptly discovered, and pulled forth with emphasis. Xian voices buzzed. Their eyes were cold. After that second try, Doc had a wild look, like somebody with a treasure that he can't use. "No star trips for us, yet," he growled. "Not with another bigger purpose back home. Somehow I'll get there, or stop living!" * * * * * A little later we were back in the familiar laboratories. It was night, deepened by the fact that the sun was now eclipsed by Ganymede. But in the windowless lab with its electron lamps, this couldn't matter. Kobolah puttered in a corner. No one else was with us. Keyed up and angry inside, I noticed a rather unobtrusive combination of circumstances--three new jet rods in a corner; small nets of fine wire, containing steel cylinders of supplies. Casually stuck to a metal prong on the wall was a parchment map, showing a vertical shaft leading to an airlock--the lab's private exit. Beside the map, a little used grille was slightly ajar. Excitement became a kind of panic inside me. I looked at Jan. Her long lashes blinked knowingly. Doc nodded and walked casually away. The parchments of the secret he had gained were nearby. As if only to add further notes, he took the vast sheaf out of its compartment and carefully divided it into three. Midway in this operation, Kobolah turned toward us. Millions of years of difference in background, and in physical, mental, and emotional form, looked at us from great, cold eyes. A nervous chill came over me, both from the bleakness of discovery and frustration, again, and from the namelessness of that gaze. Finally the monster imitated a harsh laugh. "Call this outburst peculiar," he buzzed. "Coming from nothing. But I happened to think that it is easy to be a fool, and often one will never know which way is foolish. Remember that." He turned his attention back to the sputtering electrical apparatus over which he had been working. "Thank you, Kobolah," Jan said nervously. He did not reply. We divided the parchment among us, gathered up the equipment, and slipped quietly past the exit grille. An air current lifted us up the shaft to an unguarded airlock, whose control devices were readily responsive. "Somebody stacked the deck for us," Doc whispered. "The scientist's logic, against popular doubts, maybe? Better to let us escape, than to release us openly, eh? I hope he doesn't get into trouble with his people. Or is there a deeper trick? Well, we'll soon know."