"This won't do, girls!" he announced in peremptory tones. "Get into that shelter!" pointing at a half underground dugout near. "Run, run!"

Avella, without lowering her glass, replied:

"In just a minute, papa. See Mr. Blaine! My! What's he doing to that other horrid fellow?"

Blaine was at the instant trying to got on the tail of a big Taube, not unlike the one Blaine and Erwin had captured and used while on an earlier scout, as may be recalled by the reader. What accentuated Blaine's eagerness was the glimpse he caught of that Death's Head Flag, which had also adorned the former captured machine. But the Boche within this one was an adept and so maneuvered that Blaine, to save himself from an onset from behind, was obliged to try the risky side-loop, much to the surprise of the other. For Blaine, while upside down, was already firing at his opponent, and as he rose was directly on the tail. But to the girls below it looked as if Blaine was already crashing towards the earth. Andra gave a nervous scream. Avella was shocked, of course, but had her glass the next instant upon Buck Bangs, at that moment engaged in a fierce duel with two enemy opponents.

"Look! Look!" called Andra. "He's falling — ah-h-h!" This last word was long drawn out during which, to her intense joy, Blaine had righted himself and was behind and below the other plane. Now she could see the spitting of lire as he plugged bullets and shrapnel into his astonished opponent.

Scarcely did she breathe again before the Taube, its Death's Head Flag collapsing about its staff, was tumbling down, almost over them. At the same time one of the Huns battling with Bangs was hit in the tank by a rain of bullets from Byers' machine which was striving to rise above and behind the foe the captain had singled out for himself.

Down went this one of Buck's opponents in flames. Both planes fell just without the grounds, while the battle above filtered away towards the German front, the invaders evidently having gotten enough. Two other enemy planes were retiring in a crippled condition, all pursued by the Allies, who had so far lost only one machine.

The Senator, seeing little heed paid by his daughters to his commands, was seized by the spirit of the combat and recklessly hurried off towards the nearest wrecked plane that had fallen. The girls, with others, followed.

It was a sad sight. This machine, the wings still burning, lay in a confused huddle over a crushed human body that still gave signs of life. It was the plane that Byers bad sent down in flames.

Aided by men from the aerodrome, they extinguished the fire with a ready hose, the Senator and the girls assisting. Carefully they dragged out a horribly mutilated yet youthful form. A surgeon, with the girls aiding, tried to alleviate the, pain of the dying man. His lips moved.