"No, now," said the stolid mechanician. "I am half starved." He pulled up to the table and made a hearty meal, while his Celtic companion strode impatiently up and down, with twitching fingers and restless eyes. "Now then," said Brown, facing round, and brushing the crumbs from his lap, "who is to put it on?" "I shall," cried his companion eagerly. "What we do to-night is likely to be historic." "But there is some danger," suggested Brown. "We cannot quite tell how it may act." "That is nothing," said Pericord, with a wave of his hand. "But there is no use our going out of our way to incur danger." "What then? One of us must do it." "Not at all. The motor would act equally well if attached to any inanimate object." "That is true," said Pericord thoughtfully. "There are bricks by the barn. I have a sack here. Why should not a bagful of them take our place?" "It is a good idea. I see no objection." "Come on then," and the two sallied out, bearing with them the various sections of their machine. The moon was shining cold and clear though an occasional ragged cloud drifted across her face. All was still and silent upon the Downs. They stood and listened before they entered the barn, but not a sound came to their ears, save the dull murmur of the sea and the distant barking of a dog. Pericord journeyed backwards and forwards with all that they might need, while Brown filled a long narrow sack with bricks. When all was ready, the door of the barn was closed, and the lamp balanced upon an empty packing-case. The bag of bricks was laid upon two trestles, and the broad steel girdle was buckled round it. Then the great flanges, the wires, and the metal box containing the motor were in turn attached to the girdle. Last of all a flat steel rudder, shaped like a fish's tail, was secured to the bottom of the sack. "We must make it travel in a small circle," said Pericord, glancing round at the bare high walls. "Tie the rudder down at one side," suggested Brown. "Now it is ready. Press the connection and off she goes!" Pericord leaned forward, his long sallow face quivering with excitement. His white nervous hands darted here and there among the wires. Brown stood impassive with critical eyes. There was a sharp burr from the machine. The huge yellow wings gave a convulsive flap. Then another. Then a third, slower and stronger, with a fuller sweep. Then a fourth which filled the barn with a blast of driven air. At the fifth the bag of bricks began to dance upon the trestles. At the sixth it sprang into the air, and would have fallen to the ground, but the seventh came to save it, and fluttered it forward through the air. Slowly rising, it flapped heavily round in a circle, like some great clumsy bird, filling the barn with its buzzing and whirring. In the uncertain yellow light of the single lamp it was strange to see the loom of the ungainly thing, flapping off into the shadows, and then circling back into the narrow zone of light.