“You would have a noble chance of making that discovery if you were going with us,” put in Marovitch.

“Where are you going?” was Henri’s eager query.

“In two hours we will be in full sail for Brest Litovsk,” announced Salisky.

The boys each took an elbow grip on the speaker.

With one voice they cried: “Count us in on the flight, if you can!”

“Suits me all right,” promptly agreed Salisky, “but it is the lieutenant who names the pilots, and we are hunting for him now.”

“He’s the very man we have been looking for ourselves,” said Billy, “and we are more in a hurry than ever to get hold of him. Come along.”

The aviation chief had just emerged from the house quarters of a brother officer when the searchers surrounded him, Salisky presenting a written order, and the boys with difficulty refraining from putting their request in advance of the reading.

Indeed, the lieutenant had barely comprehended the text of the official billet before Henri was talking in one ear and Billy in the other. It was breach of discipline for which any of the veterans in the aviation corps would have forthwith been called down, but exuberant youth could not be denied.

The upshot of it was that the young aviators carried their point, having the hearty endorsement of the two men directly responsible for the success of the mission assigned to them.