Had orders to start reformation of Headquarters trench. Previous to arrival of working party inspected trench which while I was there was badly straffed by T. Mortars and Minnies. Worked till 1 a.m. when orders came that all working parties were to clear out. Before we got clear our intense bombardment of Bosch trenches started – a fearful racket. As we entered Aix guns in village commenced to fire -the whole ruined place being lit up by flashes from the guns in the village.