"Something like a hundred and ten miles."

"Holy smoke! Over a construction track—in the night?"

"It's the president's order—none of mine. Let's get a move."

The big man got down from his box and made room for Ford. "I'll be pilin' 'em in the ditch somewhere, as sure as my name's Bill Hector," he said. "But we'll go, all the same, if he says so. I've pulled Mr. Colbrith before. Down with you, Jimmy Shovel, and set the switch for us."

The fireman swung off and stood by the switch, and Hector backed his one-car train from the siding. When he had picked up the fireman and was ready to assault the mountain, Ford thrust a query in between.

"Hold on a minute; how is the water?" he asked.

Jimmy Shovel climbed over the coal to see, and reported less than half a tankful.

"That settles it," said the chief to Hector. "You'll have to back down to Saint's Rest and fill up. You'll get no more this side of Pannikin Upper Canyon. We haven't had time to build tanks yet."

Hector put his valve-motion in the reverse gear and began to drop the train down the grade on the air. A dozen wheel-turns brought a shrill shriek from the air-signal whistle. Mr. Colbrith evidently wished to know why his train was going in the wrong direction. Hector applied the brakes and stopped in obedience to the signal.

"Do we send back?" he asked.