"Not if our government can stop the operation," smiled Captain Foster. "But, my dear, how would the government stop it?"

"By the use of the troops, I suppose," replied Mrs. Foster.

"Exactly. And did you know that Wilshire's and Apthorpe's troops of cavalry have been ordered to patrol the border in small riding parties, for the very purpose of stopping such expeditions into Mexico?"

"No!"

"Nor did I, until Major Tipton informed me, only a little while ago. Further, Tipton has been directed to hold the troops at this post ready for work in patroling the frontier. That was why I just suggested that Mr. Overton will do well to wait until this border business has blown over before he encourages you to invite his mother. Mrs. Overton might arrive here only to find her son absent on several weeks of hard hiking."

"Am I discreet in asking you, Captain, whether you think it likely that this battalion will be called out for frontier patrol duty?" asked Lieutenant Hal.

"I think it highly likely that at least three-fourths of this command will soon be called out on such duty," replied the captain of H company.

Hal's eyes gleamed.

"You seem to like the prospect, my boy."

"I do, sir. Active service always appeals to me."