On a front of about a mile and a half the British troops on November 18, 1916, again forged ahead for an average distance of 500 yards or so on the south side of the Ancre. On the north of the river they pushed on at daybreak through fast-falling snow until the British line was now within three-quarters of a mile to the northeast of Beaucourt and 500 yards beyond the Bois d'Holland, which was in British hands. The last advance had brought them to the outskirts of Grandcourt and here bomb fighting at close range went on throughout the day of November 18, 1916. To the west of this village ran the original main German second line, which lower down passed through such famous places as the Stuff and Zollern Redoubts. With its parallel lines of trenches and complications it was quite as formidable as the main first line constructed about the same time two years before. The British had already broken through the line up to a point some 600 yards north of Stuff Redoubt. On November 18, 1916, their troops again smashed the line for a distance of more than 500 yards. The Germans still held positions on the line to the south of Grandcourt, but the British had penetrated so far to the right and to the left that the line could no longer serve as a barrier to the village. The British advance was begun about 6 a. m., preceded by a short but fierce bombardment of the German line, and which according to the account afterward given by prisoners caused the Germans to seek the shelter of their dugouts. Troops from the British Isles and Canada who made the advance together were among the Germans before the latter could issue from their shelters after the withering storm of shells. At different places savage hand-to-hand fighting went on in the trenches. On the sides of the ravine below Grandcourt, where the slopes were swept by machine-gun fire, the British were unable to advance. But for some two miles to the right they swept all resistance away. Especially important were the British gains on the extreme right, which gave them possession of another stage of the descent along the minor spur running in a northerly direction. The whole of the south side of the Ancre to the edge of Grandcourt was now firmly held by British troops. In the night of November 21, 1916, after a heavy preparatory bombardment by trench mortars, the Germans carried out a successful trench raid on British lines south of St. Elie. A considerable part of the British front-line trench was demolished by German fire and twenty-six British were taken prisoner by the raiders.