Nineteenth Division lay across the Cambrai Road, with the even more shattered Fifty-first Division at Riencourt to the north of them. There was some very furious fighting in front of Rocquigny about mid-day, in which the 12th Manchesters of the Seventeenth Division, and the three battalions (18th, 19th, 20th London) of the 141st Brigade made a very desperate resistance. The fighting was continued until the {59} defenders found themselves in danger of being surrounded, when they were withdrawn. The 140th Brigade, under Colonel Dawes, also did great service that day in holding the Germans from getting behind the line. The enemy was so far round that there was the greatest difficulty in clearing the transport, which was only accomplished by the fine rearguard work of the 4th Welsh Fusiliers, aided by the 11th Motor Machine-gun Battery, and 34th Brigade R.F.A. It was, however, to the south, where the Third and Fifth Armies were intermittently joined and vaguely interlocked, that the danger chiefly lay. About noon, the enemy, finding the weak spot between the two armies, had forced his way into Sailly Saillisel in considerable force, and pushed rapidly north and west from the village. So rapid was the German advance upon the right rear of the Fifth Corps that Rancourt and even Combles were said to have fallen. In vain the Seventeenth Division overstretched its wing to the south, trying to link up with the Seventh Corps. Early in the afternoon Morval and Les Bœufs had gone, and the troops were back upon the mud-and-blood areas of 1916. For the moment it seemed that the British line had gone, and it was hard to say what limit might be put to this very serious advance. By midnight the enemy were north of Bapaume, and had reached Ervillers, while in the south they had taken Longueval, the key village of Delville Wood. It was indeed a sad relapse to see all that the glorious dead had bought with their hearts' blood reverting so swiftly to the enemy. In the north, however, as has already been shown in the story of the Sixth Corps, the enemy's bolt was shot, {60} and in the south his swift career was soon to be slowed and held.