Ralph started the engine up, and it rolled toward the switch points. This seemed to wake the hesitating Mexicans to life. With a yell, they made a concerted rush for Buck, but, as they did so, Ralph pulled the whistlecord, and the locomotive emitted an ear-splitting screech. The Mexicans hastily jumped aside, to avoid being run down, while Buck made a leap to exactly the opposite side of the track. As the engine puffed by, he swung on. As he did so, however, one of the yellow men made a spring for the switch. It was his evident intention to throw it, while the engine was passing over it, and ditch them.
But, before he could carry out his intention, Jack, who had seen what was about to happen, had snatched up a hunk of coal. With all his force, he aimed it at the fellow, and struck him fair and square on the head. The would-be train-wrecker toppled backward with a groan, just escaping the wheels of the engine. Before he gathered himself up and realized what had hit him, the engine was roaring and puffing its way up the grade to the Esmeralda.
"That shows us what we may expect at the mine," commented Jack. "I hope they are still all right."
"Don't worry about that, boy," comforted Buck, noting his troubled face. "The fact that Madero had his men along the line shows that he anticipated our game—like the shrewd ruffian he is. It stands to reason he couldn't have his precious squadron, or column, or whatever he calls it, in two places at once, so I guess we'll be in time yet."
"I hope so, I'm sure," breathed Jack. "If we failed now, it would be the bitterest moment of my life."
But, as they came in sight of the tall stockade and the smokeless chimneys of the Esmeralda, they saw that their apprehensions were groundless. No sign of life appeared about the mine buildings. But presently, in answer to a long blast on the whistle, a strange figure came toddling out of the gate. It was that of Geisler. As he saw the engine, with its load of friendly faces, he broke into a cheer, and ran toward the track side.
"Hoch! Hoch! Hoch!" he yelled, waving his china-bowled pipe about his head. "Diss iss der bestest thing I've seen since I had idt der Cherman measles, alretty yet."
As the brakes ground down, and with a mighty exhalation of steam and a sigh from the air-brakes, the locomotive came to a stop, Jack leaped from the cab and ran toward the German. To his astonishment, Geisler almost recoiled as he drew near, and uttered a shout.
"Donner blitzen! I voss righdt den, idt vos a trap dot dose rascals laid."
"What do you mean, Mr. Geisler? Where is my father?" gasped Jack, all in one breath.