queer-looking aeroplane was just vanishing into the thin mist. But behind it, going “all out,” sped the Mohawk in furious pursuit. Dick Manton was taking a hand in the game of which he was a master! There could be but one end to that, Jules thought, with a sigh of relief as he turned to look after Yvette.

She was recovering consciousness and they were just about to carry her out, when one of the policemen with a loud cry dashed to the table. He had caught sight of a thin thread of smoke rising from the fuse of the bomb!

Luckily he was an old bombing instructor and knew what to do. A moment later the fuse was cut and the bomb’s detonator removed. It was harmless now. Half a minute later it would have exploded.

Watching keenly from his roof Dick Manton had seen Barakoff’s aeroplane rise swiftly and silently into the air. He had some slight trouble in starting the Mohawk, and the Russian was a mile away before the Englishman had started in pursuit.

Crouched in the driving seat of the Mohawk, Dick kept his eyes glued on the machine in front. He soon realised, to his dismay, that the Russian machine was much the faster and was leaving him behind. By the time they had gone ten miles and were out over the open country, he could only just discern the fugitive as a mere speck in the distance, and he realised with a sinking heart that a fleck of mist would enable Barakoff to escape.

Suddenly he discovered that the Russian machine had descended very low. A moment later it appeared to rise vertically, going up to a great height.

Instantly Dick followed and to his surprise found himself gaining rapidly. Then the Russian seemed to slip ahead again.

Several times this was repeated, and Dick at length divined the reason. The Russian could not run his elevating and driving propellers simultaneously. He travelled in a series of swoops, coming down very slowly as the machine drove forward, and then being compelled to stop the driving propellers while he gained the necessary height to continue his flight. No doubt this was explained by the fact that the planes were too small to keep the machine up without the elevating propellers.

Dick saw that he held a big advantage. The Mohawk, though slightly slower, could rise and go forward at the same time under the influence of both propellers.

As they sped over Kent, Dick began to realise with joy that he 

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