"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.