In the face of death no man could be calmer than the reckless Lieutenant. For a moment they stared at each other, the airman raised his pistol, and then, to his amazement, the Englishman laughed.
In all probability, it was this cynical laugh which saved his life, but defeated his immediate object. Lawless had realised that if the man fired at him it must inevitably attract the attention of those on board the Mars—for revolver shots in mid-air would be hardly likely to pass unnoticed—and they would at once open fire with the anti-aircraft guns. But the same thought had evidently occurred to the other, for, instead of firing, he slipped the revolver back into his pocket.
Lawless braced himself for the coming struggle, and twisted his legs round some wire guys to secure a firmer grip of the machine and leave his arms free. Giving a quick glance below, he saw the lights of the Mars and her attendant destroyers standing out like tiny specks in a gulf of unfathomable blackness. The two red lights of the Black Diamond were no longer visible, and he concluded that, having launched the waterplane, she had proceeded on her way. To the left he could see a searchlight, which he assumed to be operated from the Knat, rapidly sweeping the horizon in great semi-circles.
The whole panorama passed before his eyes like a flash, and a moment later he had come to grips with his antagonist.
With arms enlocked and faces almost touching, the combatants swayed gently to and fro, as though testing each other's strength. Then, loosening their hold, and drawing a little apart for a second, they closed again, and this time they wound their arms about each other like bands of steel, till the terrible pressure made their veins stand up like whipcord, and their breath came in short, choking gasps. But neither could get sufficient advantage over his adversary to swing him off, and more than once it seemed as if both of them must tumble into the sea beneath.
Had the pilot been able to come to the assistance of his companion, Lawless would not have stood a dog's chance; but, fortunately for him, the man had all he could do to maintain control of the machine and prevent it from capsizing under the constantly shifting weight of the opponents as they swayed dangerously from side to side.
Suddenly, from a point seemingly immediately beneath them, came a faint bellowing sound, which Lawless at once recognised as the Mars' syren.
Apparently his antagonist recognised it also, for, throwing caution to the winds, he flung his body forward, carrying the Lieutenant with him so that they both nearly went over the side with the sudden impetus.
Lawless was now underneath, his back resting on the narrow deck of the car, while the airman struggled to get a grip of his throat. Uppermost in the mind of each was the desire to kill. Hate gleamed from their bloodshot eyes, and they ground their teeth savagely. Having the advantage of position, the airman at last managed to get his fingers round the Lieutenant's throat, and the latter, in a desperate endeavour to free himself from the choking grip, relaxed his hold, and was swung over the side of the car. For a moment he remained head downwards, suspended only by the steel wires into which he had twisted his legs. Then he began to slip, and a second later disappeared from sight into the yawning abyss beneath.
Quick as thought the airman leaned back, and, reaching the lever which operated the bomb-throwing machine, pulled it; but, as he did so, the waterplane gave a terrific lurch, and the bomb, instead of dropping on the Mars, which at that moment was directly underneath, fell into the water and exploded some distance astern of her. The cause of this failure was due to Lawless gripping in his fall one of the stays which held the rudder, and his weight, operating on the extreme end of the machine, had destroyed its balance, and therefore altered the course of the bomb.