"I can't promise until I find out how badly he is injured."

"Oh, but you must, Uncle Warren. If you have him killed, I'll never love you again," insisted Miss Nellie, repeating the threat she had already made.

"Well, dear, I'll promise this: he shall not be killed unless I can show you that it is the best thing to be done, and you give your consent."

"Then he'll live to be an old, old mule!" cried Miss Nellie, joyfully; "for I'll never, never consent to have him killed."

As the ladies once more got into the car, and the mine boss helped Derrick push it towards the junction, Mrs. Halford said, "How do you happen to be back so early, Warren? I thought you were to be gone all day."

"Why, so I have been," he answered, with some surprise. "Don't you call from six o'clock in the morning to nearly the same hour of the evening all day?"

"You don't mean to say that it is nearly six o'clock?"

"I do; for that witching hour is certainly near at hand."

"Well, I never knew a day to pass so quickly in my life. I didn't suppose it was more than three o'clock, at the latest."

"It is, though; and to understand how time passes down in a mine, you have but to remember two often quoted sayings. One is, 'Time is money,' and the other, 'Money vanishes down the throat of a mine more quickly than smoke up a chimney.' Ergo, time vanishes quickly down in a mine. Is not that a good bit of logic for you?"