There was no change in the situation so far as the Twenty-second Corps was concerned until October 19, when the enemy began to retire in front of the Highland Division, in conformity with a movement which had already begun north of L'Escaut, and which spread down to the front of the Fourth Division. The Germans had prepared a line of defence upon the Ecaillon River in the rear, and were now letting go of the Selle in order to reassemble their forces upon this even stronger front. The withdrawal was irregular, so that some parts of his array remained hard when others had almost ceased to exist. Thus at Haspres and the part of the Selle {268} to the north of it, there was still some stiff fighting. He abandoned Saulzoir, however, and the Fourth Division promptly established a bridge-head which should be the base for a future advance. On the Fifty-first Divisional front the pursuit was so rapid, both by the Highlanders and by the Corps Cavalry, that there was not much time for reorganisation. [Sidenote: Oct. 20.] During October 20 and 21 the Germans were slowly pressed back from the high ground east of the Selle into the Ecaillon valley, and artillery was pushed up to prepare for a further attack upon the new line. The sappers did some great work in throwing, under fire, many bridges over the Selle. Noyelles and Douchy were occupied on the morning of October 20. The river was found to be strongly wired, and there were scattered lines of trenches on the farther side, which made up a strong, fortified position, called by the Germans the Hermanstellung. It was clearly a more elaborate position than that of the Selle. None the less the infantry was not to be denied and the troops crossed the river by wading, the water in many cases being up to the armpits of the men. The 10th and 11th Brigades of the Fourth Division fought their way half-way up the north-eastern slope of the valley, past the villages of Verchain and Moncheaux. The 1st Somersets and 1st Hants occupied the latter and pushed through it, securing the high ground east of the villages, but they found that their comrades of the 2nd West Riding and 1st Warwicks were held up by the German main line upon the crest of the hill, and that the Sixty-first Division, the nearest unit on their right, were temporarily checked at Vendegies. The 2nd West Riding got forward, however, and occupied a {269} position on the crest called "The Pimple," whilst the Fifty-first Division on the north of the 11th Brigade also got well forward up to the village of Maing. In the morning of October 25 the 12th Brigade took up the task in this sector, the 1st King's Own on the right and the 2nd Essex on the left advancing without any very serious opposition, being in touch with the left of the Seventeenth Corps. In the late afternoon the Germans reacted strongly, and there was a counter-attack upon the front of the 2nd Lancashire Fusiliers and upon the Highlanders to their left,