The long-coated, helmeted lieutenant stiffened as though galvanised, walked smartly up to him, saluted, and waited rigidly for his orders. Oberleutnant Schwarz, a young freckled-face fellow, set the pattern for discipline in that battery. The commander noted the punctilious attitude without his wonted inward smile. The occasion had found the man. "Schwarz, communication with the forward officer is interrupted. Eberstein has gone to re-establish it if possible. I am going into the flank observing station. Orders will come from there. Put the Einjähriger into the telephone dug-out. The situation is critical. Something has gone wrong. A new kind of armoured car has broken through the trench-line. They must be stopped at all costs. The orders from the battalion commander are formal. The battery will not retire while it has ammunition. I have ordered up every available round. The battery will maintain its position, _whatever happens_, while it has a man and a shell. Is that clear?" Oberleutnant Schwarz saluted in precise parade-ground fashion. "Quite, Herr Hauptmann," he replied unemotionally. "If I become a casualty the command devolves upon you," continued von Waldhofer. "Remember these armoured cars are your target, wherever they can be fired on. Use direct laying if you get the opportunity." A flight of shells burst in a succession of heavy crashes on the swelling ground to his right. He glanced at them. "Keep a couple of groundmen going over the wire to the flank observing station. Here, two of you!" he shouted suddenly to some mounted N.C.O.'s who at that moment trotted up to the battery with a string of ammunition limbers. Upon his sign one of them dismounted. The captain swung himself into the vacated saddle. Oberleutnant Schwarz saluted once more. Accompanied by the other N.C.O. the battery commander set off at a hard gallop, up the rising ground into the welter of dark smoke from the just-burst shells. The flank observing station was a splinter-proof dug-out on a little knoll some 500 yards away to the left flank of the battery. It had been constructed in prevision of the unexpected. Von Waldhofer spurred towards it now at the top pace of his horse. Despite many shell-bursts, on the ground and in the air, he reached it safely. Leaping to earth, he threw the reins to his follower and sent both horses back. Then he dived into the dug-out. Both telephonists were there awaiting him. The large-scale map was pinned out on a board, instruments upon it. The range-finder stood by the observation-slit. One of the orderlies was testing the telephone communication to the battery. Von Waldhofer pulled his glasses out of their case, pressed himself against the observation-slit and looked out.