Deafened by the explosions that now recurred every few seconds, smothered in dust, struck by fragments of stone, half choked by fumes, he still held his place at the window. The enemy had learnt a lesson. They kept out of sight. Before long the guns would have done their work, and when the tower was in ruins the way would be clear.
"They won't charge again till we're smashed," he thought. "Now for it!"
Taking his rifle, he hurried down the stairs. At the trap-door he halted a moment. He knew the risk he was about to run. His work in the tunnel had been so hurried that the backward force of the explosion could not be wholly checked. He was taking his life in his hands; but it was the last hope. He gathered himself together. His foot was on the first step when he was brought to a halt by a rifle shot below. The next instant he was hurled back by a terrific concussion, and fell, an immense noise dinning in his ears. For a moment he lay dazed.
"Marco must have done it!" he said to himself as he staggered to his feet.
Down into the cellar he sprang, gasping in the noisome fumes. His electric torch, still gleaming, lay on the floor. Near the mouth of the tunnel he saw the heroic old Serb prostrate. He rushed to him, stooped over him. Was he yet alive? Burton could not tell. Exerting almost superhuman strength he managed to hoist the big man to his back, and staggered with him across the cellar, up the steps, and across the floor. Almost broken down under the weight of his burden, he was just reaching the entrance when there was an appalling crash. The tower tottered and collapsed, and the two men fell together.
A PERILOUS MOMENT
VII
When Burton came to himself, it was to find an officer in khaki, with the red cross of the R.A.M.C. on his sleeve, bending over him.
"That's all right!" said a cheery voice. "He'll do now!"