Craig waited. Tommy-guns chattered in the darkness. Grenades thundered. Then he saw what he had been waiting for. A tongue of flame licked out of the hangar. Fire in the nest of the vultures! The flames grew in violence. "Withdraw!" Craig said huskily. "Get back. Draw them away with you." He was talking to himself. The men attacking the hangar could not hear him. Their retreat was the next phase of the attack. Retreat and draw the Ogrum after them. * * * * * They began to retreat. Flames were roaring from the hangar. It was constructed of stone and the walls would not burn. Leaping tongues of fire poured out of the open door. For a few minutes after the attack began, the drum-beat continued from the temple. The instant the first explosion had sounded, the drum-beat had faltered. Then it had caught itself and continued. But the continued explosions were unsteadying the hand of the drummer. The drum stopped beating. The Ogrum poured from the temple. The moon had not yet risen. The burning hangar provided the only illumination. By its light, Craig could see streams of startled beast-men rushing from every entrance. For a few minutes, they milled in confusion. Something had happened that was not on their schedule. They did not in the least understand the explosions they had heard and they could not grasp what had happened to their hangar. Eventually they seemed to understand that they had been attacked and that the enemy was retreating. Stabbing flashes of fire from the sub-machine guns showed where the enemy was retreating. Angry Ogrum charged the enemy. Simultaneously, across the city, puffs of light began to appear. Spots of dancing illumination leaped from thatched hut to thatched hut, leaving behind them bright knots of light. The knots of light grew. They spread. The spots of dancing illumination ran on ahead of them, leaving new knots of light. On the far side of the city the sky grew bright. Masses of Ogrum, bewildered by this new spectacle, paused in confusion. Their city was on fire. They did not understand it. They began to hurry toward the fire. "Phases one and two of the attack are now complete," Craig said to his waiting men. "The third phase begins. Come on. It's our turn now." The attack on the hangar, the subsequent retreat, and the firing of the city had been carried out perfectly. On the far side of the city the torch squad was still firing the thatched huts. This squad was beginning to withdraw also, pulling the Ogrum after them. "The attack is a success!" Craig thought exultantly. "We've burned their planes and set their city on fire. Before they know what has happened, we will have rescued the prisoners. We've won!" The thought was burning in his mind. "We've won! Stinky and Margy and the lads from the Idaho will be free again!"