But the situation on the right rear was getting worse and worse. In the evening it was definitely known that Hill 63 had at last fallen after a long and obstinate struggle. The Twenty-fifth, and later {256} the Thirty-fourth Divisions had held up against great odds, but the main force of the enemy was now striking upon that line, and the British were forced to withdraw from Le Bizet towards Nieppe. These German gains enforced a completely new re-arrangement of the forces in the north if they were to avoid being taken in the rear. This change of a wide and far-reaching character was quickly and safely effected during the night of April 11 and 12. It involved moving back the three northern corps into their battle zones, leaving only outposts in advance. They still covered Ypres, but the retirement meant that all that had been won in the mud-and-blood struggle of 1917 had passed into German keeping, and coupled with the loss of Messines it seemed to threaten that the old salient might be renewed in as disastrous a fashion as ever. This retirement was rather in the nature of a precaution against the possibilities of the future. What was of most immediate importance was the withdrawal of the lines which were at such close grips with the enemy to the west of Messines. By the morning of April 12 the general line of the Nineteenth Corps was Steenwerck Station, Pont-d'Achelles, Neuve Eglise, Wulverghem, Wytschaete. No immediate German attack followed on the withdrawal. This abstention on the part of the enemy was due in part to the wonderful work done by a small nest of four machine-guns on the Messines-Wulverghem Road under the command of Lieutenant Hodgson. This small unit had already fought for forty-eight hours, but on this third day of the battle their services were invaluable, for they shot down hundreds of Germans as they endeavoured to debouch from Messines and descend the slope. Save for two {257} wounded men none of this band of heroes ever returned. Among other detachments who behaved with great heroism were a few men of the 5th South Wales Borderers, B Company, under Captain Evans, who maintained themselves at Pick House, north and east of Messines, for three days, until they were at last rescued by the 58th Brigade from the north.