"Monsieur Power, you are annoying mademoiselle in a grave degree," broke in the count, suddenly glaring. "My friends will lose no time in waiting on you."

The American swung round with one of those rapid, definite movements so habitual with him.

"Don't trouble your friends," he replied. "We can do without them. Come up and fly with me right away. We'll toss a quarter to decide who steers."

"It would be madness!" exclaimed the count, and his jaw dropped.

"Then kindly mind your own business," said Monsieur Power, chewing again on his grass stem, and talking through his teeth. "Now, Ella, time's up! Am I to go?"

The girl bit her lip, and seemed to struggle vainly for a reply, but the look in her eyes would have withered any man less accustomed to strife than this iron-jawed young soldier of fortune from Wall Street. In my turn, anger seized me as I saw her hesitate.

"You will pardon a further interruption, monsieur," I cried. "I can permit no such madness on my flying ground, and no such discourtesy to my pupils."

I beckoned the head mechanician.

"You will at once remove to a hangar the biplane of Monsieur Power," I told him, "and disconnect the ignition. Should he attempt to enter the nacelle again, you will cause him to evacuate it in march time and three movements!"

"And the first dago that tries it will get hurt," added Monsieur Power pleasantly.