He waited....

Presently—swish! They were circling in the opposite direction to Tam, which meant that the object passed him at the rate of one hundred and forty miles an hour. But he had seen the German coming.... Something dropped from the fuselage, there was the rending crash of an explosion and Tam dropped a little, swerved to the left and was out in clear daylight in a second.

Back he streaked to the British lines, his wireless working frantically.

"Enemy raiding squadron in cloud—take the edge a quarter up."

He received the acknowledgment and brought his machine around to face the lordly bulk of the cumulus.

Then the British Archies began their good work.

Shrapnel and high explosives burst in a storm about the cloud. Looking down he saw fifty stabbing pencils of flame flickering from fifty A-A guns. Every available piece of anti-aircraft artillery was turned upon the fleecy mass.

As Tam circled he saw white specks rising swiftly from the direction of the aerodrome and knew that the fighting squadron, full of fury, was on its way up. It had come to be a tradition in the wing that Tam had the right of initiating all attack, and it was a right of which he was especially jealous. Now, with the great cloud disgorging its shadowy guests, he gave a glance at his Lewis gun and drove straight for his enemies. A bullet struck the fuselage and ricocheted past his ear; another ripped a hole in the canvas of his wing. He looked up. High above him, and evidently a fighting machine that had been hidden in the upper banks of the cloud, was a stiffly built Fokker.

"Noo, lassie!" said Tam and nose-dived.