When the march was resumed the direction was changed, and, moving eastwards, billets were reached at Neuville-au-Cornet. Rumours were now spreading of the forthcoming battle and a further march to Villers-sur-Simon left no doubt that the Battalion would be involved. These were the last billets occupied by the men, the next portion of the trek bringing them to huts at Montenescourt, about six miles due west of Arras. Here Lieut.-Col. F.W. Robson, D.S.O. (5th Yorkshire Regiment) arrived to take over the command, which he held for nearly a year. On the evening of the 11th April, in a blinding snowstorm, the Battalion moved forward to the fight. Marching through Arras, they came to the caves at Ronville. These caves were like nothing seen before. Excavated by Spanish prisoners in the middle ages to provide stone for the building of the city, they extended over an enormous area, and were capable of holding thousands of men. The sensation of finding oneself in this huge underground town, complete with electric light and water supply, after stumbling down a long, uneven stairway, will not be forgotten by those who survive. After one night here, the caves had to be evacuated next morning to make room for more troops coming up. The Germans had now been driven back as far as Wancourt, which was captured the previous day. On leaving the caves, cellars in Ronville village were occupied. No sooner were the men in, however, than orders were received to move further forward. The Battalion paraded on the road leading to Beaurains, which was crowded with vehicles and men, and marched off in the afternoon. After their experiences of trench warfare the sight of open, rolling country, the scene of yesterday's fighting, was very strange and, to some, invigorating. Passing through the ruins of Beaurains and Neuville Vitasse, the route turned across country towards Wancourt, and about dusk the Battalion reached a sunken road, where it halted. Owing to a delay in the arrival of the Lewis gun limbers, the Lewis gunners were behind the rest of the Battalion, and some difficulty was experienced by them in locating the sunken road. Up to this point there had been no firing or signs of activity. After a conference of Commanding Officers a relief of the 14th Division was arranged. W, X and Y Companies moved a little further up and occupied Niger and Nepal trenches, which were some distance behind the front line, and Z Company were sent to dig a trench a little further forward near Wancourt cemetery. Here they remained for the day. At night detailed orders were received for an attack at dawn, the Battalion's frontage being near Wancourt Tower.