"Bill! my Bill! You're lying!" cried the miner, fiercely. "Bill came out of de mine wid de day shift. I seen him."

Rough and cruel as he was, the man had, hidden somewhere in his being, a deep-seated affection for his son Bill. Although he had never been heard to speak other than harshly to him, Bill was the pride and joy of his hard life. A blow aimed at Bill struck him with redoubled force. His hatred of Derrick Sterling arose from the fact that the lad had thrashed his boy. Now to tell him that his boy Bill was so badly hurt that he was likely to die was like wrenching from him all that he held worth living for.

The women made way for the rough miner as he strode to where his son lay on a heap of soiled bedclothing, tossing and moaning, but unconscious, and in a high fever. One look was enough, and then Monk Tooley left the house, and set forth on a ten-mile walk through the night to fetch the nearest doctor.

By sunrise the doctor had come and gone again, having done what he could. He said the boy would live if he were kept quiet and had careful nursing, but that he was injured in such a way that he might be lame for the rest of his life.

When Monk Tooley went down into the mine that day—for he must now work harder and more steadily than ever to support this added burden—he was a silent, heart-broken man.

It was nearly noon before Derrick Sterling awoke after his first day of bitter experience in the mine. Though he was still sore and lame, hot water and sleep, two of nature's most powerful remedies in cases of his kind, had worked such wonders for him that he felt quite ready to enter the mine again, and face whatever new trials it might have in store for him.

After dinner the mine boss came to see him, and was amazed to find him looking so well and cheerful.

"You seem to come up smiling after every knock down, Derrick," he said. "I shouldn't wonder if you would even be ready to go down into the mine again to-morrow."

"Indeed I think I must, sir," said Derrick, earnestly. "I don't believe any one else can get along with Harry Mule as well as I can."

"Let me see. How many years have you been driving him?" asked Mr. Jones, gravely.