But the battle was not over yet. While Boom Ravine was being cleared of its living inhabitants by the Royal Fusiliers other waves were coming up; or, rather, not waves, but odd groups of men, dodging over the shell-craters, and hunting as they went for German snipers, who lay in their holes firing until they were pinned by bayonet-points. Their bodies lie there now, curled up. Some of them pretended to be dead when our men came near. One of them lay still, with his face in the moist earth. "See that that man is properly dead," said an officer, and a soldier with him pricked the man. He sprang up with a scream, and ran hard away--to our lines. Six prisoners came trudging back from the Ravine, with a slightly wounded man as an escort. On the way back they found themselves very lonely with him, and passed some rifles lying in their way. They seized the rifles and became fighting men again, until a little Welsh officer of the South Wales Borderers met them, and killed every one of them with a revolver. VI THE ENEMY WITHDRAWS FEBRUARY 18 The enemy is steadily withdrawing his troops from many positions between Hebuterne and the ground south-west of Bapaume, and our patrols are pushing forward into abandoned country, which they have penetrated in some places for nearly three miles beyond our former line. They are already north-west of Serre, south of Irles, above Miraumont, Petit-Miraumont and Pys, which are now in our hands without a battle. We have gained a number of German strongholds which we expected to win only by heavy fighting, and the enemy has yielded to our pressure, the ceaseless pressure of men and guns, by escaping to a new line of defence along the Bapaume Ridge. This is the most notable movement which has taken place in the war since the autumn of the first year. The German retirement in the battle of the Marne was forced upon them only by actual defeat on the ground. This is a strategical retreat, revealing a new phase of weakness in their defensive conditions. It has not come to our Generals as a surprise. After the battle of Boom Ravine, there were several signs that the enemy contemplated a withdrawal from the two Miraumonts, and our recent capture of Baillescourt Farm and the ground on the north of the Ancre seriously menaced Serre. Yesterday morning, through a heavy grey mist, fires were seen burning along the German front line. For several days the enemy's field-batteries had been firing an abnormal amount of ammunition, and it seemed likely that they were getting rid of their supplies in the forward dumps before withdrawing their guns. Patrols sent out had a queer, uncanny experience. It was very quiet in the mist, almost alarmingly quiet. They pushed in after the enemy. Not a sound, not a shot came from Serre.... These reports were sent back, and more patrols were sent forward in various directions. They pushed on, picking up a few prisoners here and there