“They’re ready. To tell the truth, I showed them to Brandon and he made a good suggestion about the rounding of the waterline.”

The Colonel looked thoughtful.

“Well, the idea of a combined pontoon and light boat that would carry troops is by no means new; but these are rather an unusual type and if it were known that we were building them, it might give the enemy a hint. I suppose you told Brandon the thing’s to be kept quiet.”

“Yes; I made it plain,” the Adjutant said, and they walked on.

Dick had been sitting on the bridge, but he jumped up as a rhythmic tramp of feet came down the hillside. Dust rose among the cornfields and hung in a white streak along the edge of a wood, and then with a twinkling flash of steel, small, ocher-colored figures swung out of the shadow. They came on in loose fours, in an unending line that wound down the steep slopes and reached the bridge-head. Then orders rolled across the stream, the line narrowed, and the measured tramp changed to a sharp uneven patter. The leading platoon were breaking step as they crossed the bridge. Dick frowned impatiently. This was a needless precaution. The engineers’ work was good; it would stand the percussive shock of marching feet.

He stood at attention, with a sparkle in his eyes, as the hot and dusty men went by. They were, for the most part, young men, newly raised infantry, now being hardened and tempered until they were fit to be used as the army’s spear-head in some desperate thrust for which engineers and artillery had cleared the way. It was some time before the first battalion crossed, but the long yellow line still ran back up the hillside to the spot at which it emerged from the deepening shade, and the next platoon took the bridge with unbroken step. It swayed and shook with a curious regular tremble as the feet came down; but there was no giving way of tie and stringer-beam, and Dick forgot the men who were passing, and thought of fastenings and stressed material.

He was young and the pomp of war had its effect on him, but the human element began to take second place. Although an officer of the new army, he was first of all an engineer; his business was to handle wood and iron rather than men. The throb of the planks and the swing of the pontoons as the load passed over them fascinated him; and his interest deepened when the transport began to cross. Sweating, spume-flecked horses trod the quivering timber with iron-shod hoofs; grinding wheels jarred the structure as the wagons passed. He could feel it yield and bend, but it stood, and Dick was conscious of a strange, emotional thrill. This, in a sense, was his triumph; the first big task in which he had taken a man’s part; and his work had passed the test. Taste, inclination, and interest had suddenly deepened into an absorbing love for his profession.

After a time, the Adjutant sent for him and held out a large, sealed envelope.

“These are the plans I showed you,” he said. “Colonel Farquhar is driving to Newcastle, and will stop at Storeton Grange for supper at midnight. The plans must be delivered to him there. You have a motorcycle, I think?”

“Yes.”