This activity on the part of the German artillery was the prelude to a counter-attack, by which the enemy retook the Hohenzollern Redoubt. On the 4th the East Yorkshire Regiment tried to retake this Redoubt, but failed. The 2nd Battalion Grenadiers, still in support, was engaged in digging communication trenches towards the old German trenches which were now our front line. It was an intricate piece of trench line, with the Germans not thirty yards off, and required a great deal of work to make it tenable. On the 5th the 2nd Battalion Grenadiers moved up in the front line, and there was a certain amount of bombing on both sides. For two days the Battalion remained in its trenches, and sniping was reduced to a fine art, as hyposcopic rifles had been provided. On the 7th the Battalion was relieved by the 3rd Battalion Coldstream, and retired to billets at Vermelles, but even here the shells followed it, and fell in and about the village. On the 8th the Battalion returned to the trenches, and that night the enemy attacked, but were easily driven off. On the 10th Lieut.-Colonel Jeffreys determined to take the enemy's bombing post by surprise, and to bomb up his trench as far as possible. No. 1 Company under Lieutenant H. A. Clive was selected for the task, and the whole scheme of attack was carefully planned and explained to every officer, N.C.O., and man who took part in it. Second Lieutenant Sandeman was ordered to command the party, but Lieutenant J. C. Craigie, the bombing officer, went first. It was a pitch-dark night and very quiet, so that every man had to be careful not to make any noise, more especially as every few minutes a light went up silently. Slowly thirty crawling figures went out, and made their way through the grass. A quarter of an hour went by in silence, and Colonel Jeffreys, fearing that there was some mistake, telephoned to Lieutenant Clive to ask why the attack had not begun, but at that moment the first bombs exploded. Lieutenant Craigie reached the German bombing post in safety, and as soon as the bomb-throwing began in earnest, whistled back, which was the signal for Lieutenant Grigg to come out with a chain of men carrying bombs.