We were hardly more than a hundred feet from the ragged little cliff which towered now grimly over us. I flung a glance around. Everywhere great boulders and ice-masses were strewn, wildly tumbled. The starlight glittered prismatic on their tops. The shadows between them were black, yawning pits of emptiness. Everywhere a frigid desolation. But its congealed beauty was marred by the blight of warmth upon it. Veils of ice hung from the ragged, honeycombed little cliff--but they were leprous veils, their beauty eaten away by the blight of warmth, like some hideous disease rotting them. Everywhere water was dripping, running in rivulets, gathering into pools on which the starlight shimmered with a faint opalescent sheen. "Stop here," Carruthers commanded. We had picked our tortuous, sloshing way perhaps halfway to the little cliff. "Try the spectroscope here," Carruthers added. "Along the base of that precipice. If there's an outcropping there, it would be easy to get at." His words struck me with apprehension. Carruthers seemed to know more about this thing than I had hoped. It was my plan now to locate the Xalite if I could. But somehow I feared to let them get their hands on it. With it safely on board the _Planeteer_, it might easily occur to them that they could successfully navigate back to earth. Their purpose in keeping me alive would be ended.... I could not forget with what cold-blooded nonchalance Carruthers had smiled at poor Dr. Livingston and then stabbed the knife into his back. I was alert every second now. If only I could get Duroh interested, with his weapon turned from me just for a moment. With half a chance I would risk a fight now, rather than cold-blooded murder later on. "Now, let's hope--" Carruthers muttered, as I set up the little hooded spectroscope screen, and trained the instrument on the base of the cliff. In a breathless moment the band spread out on the screen, glorious little splash of colors, diffusing from one into the next, with the thin dark lines of radiotronic emanations vertical streaks in the band. Xalite! It was here, unmistakable. I glanced up from the hooded screen. Off there, where starlight was glittering at the ragged base of the little cliff, there was a narrow sword-slash of gray-white rock streaking the rock-face. It was visible now, where ice probably only recently had melted from it. Ore of Xalite! Dr. Livingston had described to me what probably it would look like in its crude state here on Zura. A hundred pounds of that ore would be enough for a lifetime of earth's needs! "Well," Duroh growled. "What do you see?"