"What's happened?" asked Aram. "The Greens have found the tunnel entrance. I think they must have caught one of our topside people with a mental probe, I don't know for sure. But there's fighting in the tube-shafts now. We have to get to the ships!" Aram cursed. "Are there any weapons nearby?" The grey haired officer shook his head. "None. Only the medical instruments here." Aram ransacked the wall cabinets and produced a single small scalpel. "This will have to do," he muttered. "If we can reach the pit," said Kant Mikal, "the steelite doors may give us enough time to get clear. They're disintegrator-resistant." "Let's go," said Aram tensely. "Ready?" Deve and Mikal nodded and followed him as he opened the door to the corridor and stepped out. The tunnel was deserted, but there were muffled sounds of fighting coming through the ventilators. Aram sprinted toward the pit, his bare feet soundless on the stone floor. Deve and Mikal ran silently beside him. As they came to a turn in the tube, a single Green seemed to appear out of nowhere. Aram had a fleeting glimpse of a pistol being raised and he felt the hot, searing touch of a graze as he launched himself bodily at the man. There was a crashing roar as the tetrol shell exploded harmlessly against the stone wall of the tunnel, sending echoes reverberating down the long passageway. Aram caught the Green in the pit of the stomach with the full force of his charge. The man doubled up painfully, dropping his weapon to the floor. Aram rolled to his feet, catlike. The Green roared with rage and lunged at him. Aram stepped under the attack and brought his two clenched fists down on the back of the man's neck. The Green staggered and spun about, catching Aram in a vise-like embrace. The policeman was huge, and as his arms closed about Aram's lighter frame, Aram could feel his ribs being crushed. His hand closed on the scalpel he had thrust into the waistband of his shorts. He raised it high and drove it hard into the man's broad back. The Green stiffened. With an incredulous expression, he released Aram and toppled to the stone floor. Aram leaned against the wall of the tunnel, panting, sickened. His hands were red with blood. From somewhere down the tunnel came the sound of booted feet clattering on the stones. Suddenly another Green rounded the turn, an energy rifle in his hands. Aram straightened for the expected attack, but the Green stopped abruptly, his head vanishing into a red smear as another crashing roar echoed down the corridor. As he sank to the floor, Aram turned to see Kant Mikal lowering the first Green's still smoking pistol. "Let's keep going," Mikal muttered breathlessly. Stopping only to pick up the fallen Green's rifle, Aram, Kant Mikal and Deve ran on toward the pit. "Will the others try to make the spaceport?" gasped Jerrold as they ran. "There's nowhere else to go," returned Mikal simply. * * * * *