The morning of the 22nd March had been foggy again till noon and, under that cover, the Germans had again broken in on our surprised or withdrawing divisions. Report said that whole battalions and even brigades had been cut off by the flood; their wireless working faithfully so long as it stood, and the sound of their small-arm fire continuing for a while after their last words had ceased. Late that evening orders came for the Battalion to move at midnight from Arras to Boisleux-St. Marc, some six miles due south of the town on a line more or less prepared against eventualities, and, with their brigade, to give what help they could to the divisions who might be falling back on that front. This was all that could be made out of the mass of contradictory orders that afflicted them, and the growing crop of rumours and alarms that upset men almost more than any countermanded orders. The Battalion set to work on the 23rd March to dig a support-line in rear of what was called the Army Line which ran in front of Boisleux-St. Marc while the evacuation of Arras was being completed and “all details and drummers marched to the Reinforcement Battalion at Agnez-les-Duisans,” on the Scarpe well to the west of Arras. (“In those days we was throubled the way a man is disthressed in dhreams. All manner of things happening, ye’ll understand, and him the only one able to do nothing. But I wisht _I_’d been a musicaner.”) The Diary for the 24th March merely says, “remained in same positions,” and refers to “repeated rumours.” They sent their first-line transport back out of harm’s way, and went on digging. Yet the 24th was a day no rumour could have painted much blacker than it was. From directly in front of the Guards Division at Boisleux, the line of the German gains in the past forty-eight hours dropped straight south to the Somme at Cléry, and thence skirted its western bank to Ham, where it broke across to the wide marshes of the Oise below La Fère. Two thirds of the hard-bought ground of the Somme campaign, the scores of villages whose names smelt of blood, were lost, and the harvesting of the remainder was a matter barely of hours. Next day saw Béhagnies, Grévillers, Irles of the wired bastions, Miraumont, Pys, Courcelette, Contalmaison, Thiepval and its myriad dead, and Pozières of the Australians--the very hearts of the deadliest of the first fightings--overrun; and the question rose in men’s minds whether the drive would end, as was intended, in the splitting apart of the French and British armies. For what was happening north of the Somme was play to the situation south of it. There the enemy’s swarms of aeroplanes harried the Amiens hospitals, driving the civilians into the broadside of the country behind, where the moonlight nights betrayed them to fresh hosts in the air.