I knew that not much longer could the heat about us increase thus if our ship and ourselves were to survive, yet steadily the arrows on the temperature-dials were moving forward, and as more and more of the awful heat outside penetrated through the insulation of our heat-resistant walls I felt my brain turning dizzily, saw big Jhul Din stagger and sway against the wall, and saw Korus Kan, the heat penetrating through his metal body even more than through our own, slumping sidewise across the controls as he was overcome by it, only half conscious. I sprang to his side, despite my own dizziness and parching throat and lungs, grasped the controls and held our ship straight onward, since all about us the vast glow of crimson light and heat stretched, encircling us and beating upon us as we flashed onward. No flame there was, nor incandescent gas, nor solid burning matter of any kind, nothing but a titanic region of brilliant crimson light, without visible source of any kind, glowing with terrific heat there in the emptiness of outer space. * * * * * The glow about us was becoming more brilliant with each moment that we raced on, and as the heat outside and inside increased still more I saw Jhul Din fling open the pilot room's door in a vain search for cooler air; heard from beneath a rumbling, ominous thumping and cracking, as our heat-seared walls began to warp in the terrible temperature to which they were being subjected. Far ahead in the awful region of heat and light through which we were speeding I glimpsed now a deeper spot of crimson light in the great red glow, and as we raced on toward it I saw that it was the center of all the great outpouring of red light and of heat, since it was all but blinding in its brilliance, while our dials showed a temperature mounting each moment that we neared it. "It's the center of the whole thing!" cried Jhul Din, staggering toward me and then slumping down to the floor, overcome. "Keep the ship clear of it!" he shouted, collapsing as he did so, while beside me I saw Korus Kan, completely unconscious, neither the great crustacean Spican nor the metal-bodied Antarian possessing my own resistance to the heat that now was smothering us, though I too knew that not much longer could I hold to the controls.