It was not until the next day that we learnt the history of the attack. The intention had been to capture the Hohenzollern Redoubt, and from that as a _point d'appui_ to extend our line along the Lens-La Bassée road as far as Chalk Pit Wood, with the possibility of capturing Cité St. Elie and Hulluch as advance posts. The attempt only partially succeeded. We contrived to advance our line in front of Hulluch almost on to the road, but failed to occupy permanently any of the German trenches. The Hohenzollern was apparently taken, but could not be held, as upon September 25, under concentrated fire from Fosse 8. Between Cité St. Elie and Hulluch, also, history repeated itself. Concealed wire, so placed that the artillery observers could find no place from which satisfactorily to observe the effect of their fire, held up the infantry assault. An attempt had been made to destroy this wire by map shooting combined with the use of high-explosive shell, but the destruction was not complete, and the attack failed. It was said that a handful of men actually penetrated into Hulluch but were never seen again, and that for a short time our infantry held the German trenches in front of the village. But with the enemy established in houses overlooking them, and occupying a strong commanding line along the crassier of Puits XIII bis, these trenches were untenable and had to be evacuated. The net gain of ground during the day was a depth of some two hundred yards on a front of rather less than a mile. At the same time the French, who had been supporting our attack upon the right, reported that the northern suburbs of Lens, Cités St. Auguste, St. Laurent and St. Pierre, had been so carefully prepared and were held in such strength that for the moment a frontal attack upon them was inadvisable.