In the meantime Steve Rush had worked out another plan. He had visited the most dangerous places in the mine, learning where the main artery of fire was. This done, the lad sent out men to hunt up sticks of dynamite in some of the working drifts. A few sticks were thus secured. With these Steve blew down the roofs of the levels in several places, thus absolutely checking the fire at these points.

This done, the men had little difficulty in handling the other levels. Mr. Penton, during his slow, dangerous descent, caught the faint boom of the dynamite sticks. He knew that it was not the magazine and concluded that the distant reports he had heard were caused by the explosion of stray sticks of dynamite that the fire had reached.

At last the party reached the fifteenth level, where the fire-fighting operations were going steadily forward. No one gave the slightest heed to the superintendent and his party. The miners were too busy fighting fire, and they were working with an enthusiasm and force that amazed Mr. Penton.

He hailed a drift foreman.

"Bates, what is the condition down here? I wish to know the details. You can save me time by telling me."

"I think we have the fire under control, sir."

"Is the mine badly damaged?"

"I fear it is."

"How many levels have been burned?"

"There has been fire on all of them below this, and, as you probably know, above here, too. I think Steve Rush and Bob Jarvis can give you more information than can I."