"They can't beat that," replied Dastral, as though the little dial-face understood. He felt that he must talk, though he had no observer this morning. Now he was over the fighting scout, and she saw him for the first time. She was the highest of the three, but she was a thousand feet below him, and, relying on her speed, she banked, turned swiftly, and tried to escape, actually leaving the warplane to look after herself. Dastral pulled over the controls, and down, down he went in a thrilling nose-dive as though he would crash her to the earth with his own fuselage, but that was not his intention. At five hundred feet he opened fire, and gave her three drums in rapid succession, and never was sound more agreeable to his ears than that "rap--rap--rap--rap--rap!" of his machine-gun as he sprayed the enemy from end to end of his fuselage with incendiary bullets. Before the third drum was exhausted he noticed the flames leap from the doomed German, for Dastral had sent three flaming-bullets through his reserve petrol-tank, and in that moment he knew he had only two enemies left to fight, for the first enemy 'plane went down blazing in a plunging dip, which ended in a spinning nose-dive and a terrible crash, right over the eastern end of the aerodrome. Dastral looked down, his eyes gleaming with victory, glad he had finished number one, but sincerely hoping in his heart that his comrades on the ground would be able to save the pilot from the burning wreckage, for of all deaths that the daring aviator dreads, to be burnt is the worst of all, and few English pilots, having sent the enemy down, wish him such an end. There was no time for sentiment, however, this morning, for the next moment Dastral was startled by the sound of a machine-gun behind him: "Rat--tat--tat!" Yes, one of his own friends was already attacking the warplane. It sounded like Mac, and the tactics seemed suspiciously his, for he had been creeping up behind Dastral, following his leader, as he had so often done before, and he was now engaged in a battle royal with the monster, wilst another 'plane was tackling the second scout, though at a disadvantage. For a second Dastral was halting which way to turn, but pilots have to make rapid decisions every day, and when he saw Mac's danger, for the enemy would assuredly send him down in a few minutes unless help came, the Flight-Commander banked quickly, and, still having the advantage of nearly a thousand feet in altitude, he swept on to help his man. It was well he did, for though Mac fought bravely, as Dastral had taught him to do a score of times, he was no match for the huge German, with her armoured car, and two machine-gunners in addition to the pilot. As Dastral swept back to his comrade, he saw the two machines raking each other, but though Mac got in several shots at the fuselage and the engines, he hit no vital part.