With that clanging in his ears Graham drew near the monoplane, marched into the shadow of its tilting wing.  He became aware that a number of people about him were offering to accompany him, and waved their offers aside.  He wanted to think how one started the engine.  The bell clanged faster and faster, and the feet of the retreating people roared faster and louder.  The man in yellow was assisting him to mount through the ribs of the body.  He clambered into the aeronaut’s place, fixing himself very carefully and deliberately.  What was it?  The man in yellow was pointing to two small flying machines driving upward in the southern sky.  No doubt they were looking for the coming aeroplanes.  That—­presently—­the thing to do now was to start.  Things were being shouted at him, questions, warnings.  They bothered him.  He wanted to think about the machine, to recall every item of his previous experience.  He waved the people from him, saw the man in yellow dropping off through the ribs, saw the crowd cleft down the line of the girders by his gesture.

For a moment he was motionless, staring at the levers, the wheel by which the engine shifted, and all the delicate appliances of which he knew so little.  His eye caught a spirit level with the bubble towards him, and he remembered something, spent a dozen seconds in swinging the engine forward until the bubble floated in the centre of the tube.  He noted that the people were not shouting, knew they watched his deliberation.  A bullet smashed on the bar above his head.  Who fired?  Was the line clear of people?  He stood up to see and sat down again.

In another second the propeller was spinning and he was rushing down the guides.  He gripped the wheel and swung the engine back to lift the stem.  Then it was the people shouted.  In a moment he was throbbing with the quiver of the engine, and the shouts dwindled swiftly behind, rushed down to silence.  The wind whistled over the edges of the screen, and the world sank away from him very swiftly.

Throb, throb, throb—­throb, throb, throb; up he drove.  He fancied himself free of all excitement, felt cool and deliberate.  He lifted the stem still more, opened one valve on his left wing and swept round and up.  He looked down with a steady head, and up.  One of the Ostrogite monoplanes was driving across his course, so that he drove obliquely towards it and would pass below it at a steep angle.  Its little aeronauts were peering down at him.  What did they mean to do?  His mind became active.  One, he saw held a weapon pointing, seemed prepared to fire.  What did they think he meant to do?  In a moment he understood their tactics, and his resolution was taken.  His momentary lethargy was past.  He opened two more valves to his left, swung round, end on to this hostile machine, closed his valves, and shot straight at it, stem and wind-screen shielding him from the shot.  They tilted a little as if to clear him.  He flung up his stem.