The man who had come back went into the trenches and had a word or two with the N.C.O.'s. Then he went into his own dugout. The mice had been getting at his papers. Oh yes, that's where he left his pipe! It was lying under the trestle-table, just where he dropped it before going on leave. The clay walls were a bit wet after the rains. He stood with a chilled feeling in this little hole of his, staring at every familiar thing in it. Tacked to the wall was the portrait of a woman. He said good-by to her at Victoria Station. How long ago? Surely more than seven hours, or seven years... Outside there were the old noises. The guns were at it again. That was a trench-mortar. The enemy's eight-inch howitzers were plugging away. What a beastly row that machine-gun was making! Playing on the same old spot. Why couldn't they leave it alone, the asses?... Anyhow, there was no doubt about it--he had come back again. Back to the trenches and the same old business. There was a mine to be blown up that night and it would make a pretty mess in the enemy's lines. The colonel was very cheerful about it, and explained that a good deal of sapping had been done. “We've got the bulge on 'em,” he said, referring to the enemy's failures in this class of work. In the mess all the officers were carrying on as usual, making the same old jokes. The man who had come back got back also the spirit of the thing with astonishing rapidity. That other life of his, away there in old London, was shut up in the cupboard of his heart. So it went on and on until the torture of its boredom was broken by the crash of big battles, and the New Armies, which had been learning lessons in the School of Courage, went forward to the great test, and passed, with honor. PART THREE. THE NATURE OF A BATTLE I In September of 1915 the Commander-in-Chief and his staff were busy with preparations for a battle, in conjunction with the French, which had ambitious objects. These have never been stated because they were not gained (and it was the habit of our High Command to conceal its objectives and minimize their importance if their hopes were unfulfilled), but beyond doubt the purpose of the battle was to gain possession of Lens and its coal-fields, and by striking through Hulluch and Haisnes to menace the German occupation of Lille. On the British front the key of the enemy's position was Hill 70, to the north of Lens, beyond the village of Loos, and the capture of that village and that hill was the first essential of success.