“Naturally. They lift in ten minutes.”

Still it went on below. Bark of eighteen pounder. Sharp double crack of four-point-seven. Screech and clang of French heavies. Deep boom of Granny far away in rear. Peter swept the sky with his glasses; saw the pit-head tottering above the smoke. Why didn’t they knock it out? Short! Short again! . . . He looked down towards the trenches. The white wave had turned gray. . . .

Sombrely the dawn increased. In another minute, the infantry would go over.

He fixed his glasses on the gray wave; saw it recede; saw line after line of tiny black figures, ant-like, swarm out of the ground; vanish into the grayness.

“Tell the Colonel. Infantry gone over.”

“Aye, aye, sir.”

Below, noise lessened. He peered into the smoke-pall. Further it rolled; and further. In it, nothing moved. Out of it, emerged house-tops. And suddenly he saw the black specks again, little bunches of them. Peter studied his map; took out his protractor.

“Call up the Colonel. Is that you, sir? Infantry retiring from the direction of City Saint Élie.”

“Are you quite certain? We’ve had a rumour that City Saint Élie’s fallen.”

“Quite certain, sir. True bearing from here is 100 degrees.”