"Matt!" he yelped. "Stop me! The blamed thing's got the bit in its teeth an' I can't do nothin' with it!"

Matt King slowed down, stared a moment at the frantic old man, laughed a little, then described a half-circle, put on more power, and raced along beside the runaway machine. It took him but a moment to lean over and shut off the engine.

"How did you happen to get in a fix like this, Welcome?" he asked, when both machines were at a halt and the old man was standing on one foot and trying to jerk his wooden leg loose from the pedal.

"Can't ye guess what onnery limb put this up on me?" glared Welcome. "Not sence I reformed hev I ever felt like p'intin' fer All Outdoors an' becomin' a hootin', tootin' border ruffian, as I do this here minit! Wow! The ole sperrit is a-bubblin' an' a-stirrin' around in me like all-possessed, an' I don't reckon I kin hang out agin' it."

"Buck up, Welcome," said Matt, who knew the old fellow's eccentricities as well as any one, and understood just how much of a false alarm he was. "It won't do for you to backslide now, after you've lived a respectable life for so long. Here, I'll get the lashing off that wooden leg of yours."

Leaning his motor-cycle against a tree by the roadside, Matt bent down and got busy with the rope. As soon as Welcome could jerk the pin loose, he whirled and stumped furiously back in the direction of Chub and Penny. Matt grinned a little as he looked after him.

"I never saw the old chap stirred up as bad as he is now," he muttered. "I wonder what Dirk Hawley is doing over in this direction? Welcome came within one of knocking him into the canal. If that had happened there'd sure have been fireworks."

After leaning Penny's machine against the tree, Matt mounted his own and started for the bridge. As he crossed the bridge he saw something white lying on the planks, and halted to pick the object up. It proved to be an old envelope with an enclosure of some sort, and was addressed to James McReady, Phœnix, A. T. This address was in ink, but the "James McReady" had been scratched out and the name of "Mark McReady" penciled above it.

James McReady was a prospector, and was in the hills looking for gold most of the time. He was Mark's father, and Mark's nickname was "Chub." Evidently this letter was intended for Chub, and had fallen from Dirk Hawley's pocket when he threw himself out of the way of Welcome and the charging motor-cycle. But how was it that such a letter happened to be in the possession of Hawley, the gambler? While Matt was puzzling over that phase of the question, a heavy step sounded on the bridge, and a gruff, commanding voice called out:

"What are you doin' with that letter? Hand it over here; it belongs to me!"