"Just to get a minute or two extra start," he said dryly. "Climb up in the plane, Paula." She obeyed, and turned at the top. "I will cover them until you are up," she said quietly. Bell laughed, now. A genuine laugh, for the first time in many days. "We do work together!" he said cheerfully. But he backed up the ladder. There was a stirring over by the hangars. The mechanic who had taxied the plane to this spot was a dwindling speck, no more than a third of the way across the field. But even from the distant hangars it could be seen that something was wrong. "Close the door, Paula," said Bell. He had seated himself at the controls, and scanned the instruments closely. This machine was heavy and large and massive. The boat-body between the retractable wheels added weight to the structure, and when Bell gave it the gun it seemed to pick up speed with an irritating slowness, and to roll and lurch very heavily when it did begin to approach flying speed. The run was long before the tail came up. It was longer before the joltings lessened and the plane began to rise slowly, with the solid steadiness that only a large and heavily loaded plane can compass. * * * * * Up, and up.... Bell was three hundred feet high when he crossed the hangars and saw tiny faces staring up at him. Some of the small figures were pointing across the field. The big plane circled widely, gaining altitude, and Bell gazed down. Ribiera was gesticulating wildly, pointing upward to the soaring thing, shaking his fist at it, and making imperious, frantic motions of command. Bell took one quick glance all about the horizon. Toward the sea the sun shone down brilliantly upon the city. Inland a broad white wall of advancing rain moved toward the coastline. And Bell smiled frostily, and flung the big ship into a dive and swooped down upon Ribiera as a hawk might swoop at a chicken. Ribiera saw the monster thing bearing down savagely, its motors bellowing, its nose pointed directly at him. And there is absolutely nothing more terrifying upon the earth than to see a plane diving upon you with deadly intent. A panic that throws back to non-human ancestors seizes upon a man. He feels the paralysis of those ancient anthropoids who were preyed upon by dying races of winged monsters in the past. That racial, atavistic terror seizes upon him. Bell laughed, though it sounded more like a bark, as Ribiera flung himself to the ground and screamed hoarsely when the plane seemed about to pounce upon him. The shrill timbre of the shriek cut through the roaring of the motors, even through the thick padding of the big plane's cabin walls that reduced that roaring to a not intolerable growl. * * * * *