There was now only Route A Keep in possession of the enemy, and it was determined to regain it. The guns had quickly registered upon it during the day, and at midnight they all burst into a concentrated bombardment which was followed by a rush of two companies, one drawn from the Liverpool Scots and the other from the 13th King's Liverpools. The place was carried by assault, and the garrison held it strongly on the 12th and 13th against a series of attacks. It was a most murderous business, and the brave little garrisons were sadly cut about, but they held on with the utmost determination, having vowed to die rather than give the fort up. The survivors were still there, crouching among the ruins and exposed to constant heavy shelling, when on April 15 the old epic was ended and a new one was begun by the relief of the Fifty-fifth Division by Strickland's First Division. The episode will live in history, and may match in tenacity and heroism the famous defence of Ovillers by the German Guards. The casualties were heavy, but it may be safely said that they were small compared with those of the attacking battalions. {235} The story has been carried forward in this quarter for the sake of connected narrative, but we must now return to the events of April 9, and especially to the effect produced upon the Fortieth Division by the exposure of their southern flank. This fine unit, with its terrible wounds only half healed, was exposed all day to a desperate attack coming mainly from the south, but involving the whole of their line from Laventie to Armentières. The division, which is predominantly English, but contains one brigade of Highland troops, fought most valiantly through the long and trying day, enduring heavy losses, and only yielding ground in the evening, when they were attacked in the rear as well as in front and flank.