And then, suddenly, the decision was made for him. From the colorful knot on his right burst three riders, gay in blue and crimson. Handsome, perfumed, dashing riders with the eyes of hawks, the hands of falcons, the hearts of gallantry. Men to whom the worship of our lady in domnei was a life-long creed. And-- "Make no bargains," cried one gloriously, "with a shrinking rat! _Comrades! Pour la femme!_" Before Larry could stay them they had broken past the barrier, were swooping down on the turret chamber. As they rode, their rifles spoke; bullets screamed against the sturdy metal. One pellet found its mark, and Larry glimpsed Harg's body staggering backward, sliding, falling. Harg's last thought came to them all feebly. "I die, then. But with me ... dies ... the world...." Larry shouted then. In a voice of thunder he roared, "Back! Back, everyone! For your very lives!" For Harg's falling body pressed the fateful lever. Just in time the gallant _francs-tireurs_ wheeled their horses, streaked back to the tunnels and safety. Then, with a roar like that of a thousand Niagaras, the broad, conical beam that splayed from the roof of the turret flared into jagged lightning. Earth trembled with the repercussion, up above that blast of pure energy struck the center of the Dome and smashed it into a million bits! Then came the deluge; the frightful deluge of tons of broken _impervite_, crashing down upon the control room in world-shaking shards, deafening the ears with its tumultuous thunder, burying the tiny turret beneath sixty feet of broken dome. Thus died Harg, Master of Masters.... * * * * * In the outer corridors, Sert sought Larry's side. His face was working bitterly, but he tried to control it. He said in a somber voice, "This is farewell, Larry Wilson. It is good to know that there were once men like you, and it is pitiful to know that so dies a world." Sandra was crying, her body twisting with great, uncontrollable sobs. "Larry, isn't there anything we can do? Anything?" He shook his head sadly. "I'm afraid not, Sandy. This is the pay-off. I don't know how long it takes for the radiation to work out on the human body, but I guess, it doesn't take long. We've got a little while, perhaps, and then--" He stopped. For from the far end of the corridor came a sound strange in that moment of sorrow. The sound of men cheering, laughing, hysterical with joy insurmountable. All turned and looked. There appeared a group of the Underlings, bearing upon their shoulders two men whom Larry recognized and a half dozen others, bearded, clad in rough garments, complete strangers. Sert stepped forward swiftly. "What is the meaning of this? Know you not that we are all doomed? Think you this is the moment for such unseemly laughter?" But one of the Underlings laughed in his face; a carefree laugh of heart-filled happiness.