One man indeed ran up the blazing stairway, and with a mighty blow from the pick he carried crashed open the door against which Derrick had so vainly flung himself. Only a great burst of flame leaped forth and drove him backward, with his clothing on fire and the hair burned from his face. He was Paul Evert's father.

Upon receipt of the tidings that her boy was shut up in the burning breaker, without any apparent means of escape, Mrs. Sterling had fallen as though dead, and now lay, happily, unconscious of his awful peril. Little Helen sat by her mother's bedside, too stunned and frightened even to cry.

In Paul's home a crowd of wailing women surrounded Mrs. Evert, whose many children clung sobbing to her skirts.

Suddenly two sharp strokes of a gong rang out, loud and clear, above the roar of the flames and the crash of falling timbers. The crowd of anxious spectators heard the sound, and from them arose a mighty, joyous shout. "They're alive! They're alive! They're at the top of the slope!"

But what could be done? The trestle was already blazing, and the upper end of the slope was hidden from the view of those below by dense volumes of ink-black smoke.

Again the gong rang out, "one, two," and one man of all that throng thought he knew what it meant. Springing to the mine entrance, the old breaker boss threw over the switch bar, and set the vertical switch for the dump.

Then came a crash of falling walls, and out of the accompanying burst of fire and smoke, down along the shining track of the slope, shot a thunder-bolt.

It seemed like a thunder-bolt to the awe-stricken spectators, as it rushed out of the flames, leaving a long trail of smoke behind it. In reality it was a coal-car, bearing in one end a crouching figure and a crutch. At the other end stood Derrick Sterling, bareheaded, with rigid form and strained muscles, and with one hand on the brake handle.

With a frightful velocity the car crossed the vertical switch and shot out over the level surface of the dump. Derrick felt the strength of a young giant as he tugged at that brake handle. The wood smoked from the friction as it ground against the wheel; but it did its duty. On the very edge of the dump, half a mile from the vertical switch, the car stopped, and Derrick sat down beside it, sick and exhausted from the terrible nervous strain of the few minutes just past.

It seemed hours since the machinery had stopped in the breaker and the rush of boys had been made for the door-way; but it was barely ten minutes since the first alarm had been given. From the time he stood face to face with death at the top of the slope, and started that car on its downward rush through the flame and smoke, less than two minutes had passed, but they spanned the space between life and death.