“What’s that, buddy? Je-ru-sa-lem crickets! an’ do we expect to try an’ rustle stolen mules this time? Wall, I never ’spected the time’d come when I’d be a mule wrangler o’ all things!”

“Hold everything and go slow about making up your mind,” warned Jack, visibly amused by Perk’s evident floundering, “this doesn’t happen to have anything to do with mule punchers or even rustlers. It’s only a little possible sideline that might happen to develop and of which Mr. Maxwell would have to be advised should we strike pay dirt—that’s all, Perk.”

“In that case,” admitted the now reconciled Perk, “mebbe I might stand for even mules in my itemary or whatever it is I’m aimin’ to say. I seen the stubborn critters do some mighty fine work over there in France—mules that came all the way from Missouri in the bargain. But whatever can it be mules has got to do with coaxin’ us to turn aside from our main trail, I’d like to know?”

“Just what I’m going to tell you, if you give me half a chance, brother,” explained Jack. “Here’s a little clipping that will explain the whole thing that’s got Mr. Maxwell keyed up to a high pitch,” and he passed a strip taken from a newspaper to the now deeply interested Perk.

XIII
OVER THE MOUNTAIN TRAILS

This then was what the deeply interested Perk read as he sat there on the isolated bench at the Spokane flying field and it can easily be understood the startling information he soaked in thrilled him to the core:

“The Government agents have been informed of what they suspect will prove to be a gigantic conspiracy to smuggle liquor in immense quantities across the border from Canada into this territory, carried out in an original manner never before attempted and which has thus far met with unqualified success.

“This conspiracy, it is believed, has resulted in bringing many thousands of dollars worth of rum over the line, which has been distributed among the numerous cities of our northwestern country. Several rum rings have, from all accounts, been using pack trains, often well camouflaged, in order to avoid contact with customs officers who might be abroad watching for undesirables.

“These clever smugglers, it appears, adopted numerous devices to hide the long lines of plodding, liquor-laden animals and at times it is claimed they have even driven the mules over United States forestry service trails.

“So systematized are the wide-spread operations of the rum rings said to be that a ‘traffic manager’ has been employed to route the many pack trains from Canada to secluded places opposite the sparsely settled and mountainous Okanogan country in north central Washington.