confident he will not remain long in the ranks."

The found McKenzie, the erstwhile Canadian sergeant, in his tent.

"McKenzie," said Hal, "you are about to take a trip, I see."

"That so, sir? I hadn't heard of it."

"Yes," Hal continued. "I heard a man say you were about to go to
Germany."

"And the man," said McKenzie, "was --"

"General Pershing, McKenzie."

"Very well, sir," said McKenzie, to whom the few words told the story
of important work to be done.

"In that event, I presume that General Pershing has seen fit to allow
me leave of absence."

"He has, McKenzie. I shall present the order to Captain O'Neill at
once. In the meantime, see that your guns are cleaned, and that you
have an extra supply of cartridges. We may need them. Also, leave any
papers or other marks of identification behind. When you are ready,
come to my quarters."

"I shall be there in half an hour, sir."

Hal and Chester made their way to Captain O'Neill's quarters. Hal