"Let her go!"
A man dropped the iron weight down the pipe and ran.
"Look out, everybody!" he cried as he sprang away.
"Are we safe here?" Mr. Sneed asked anxiously.
"You're all right," one of the workmen assured him.
"Oh, I'm so nervous!" faltered Ruth.
"No need of it," answered Alice, as she leaned forward to watch the spouting of the oil from the well.
There was a dull rumble beneath the surface of the earth. The ground seemed to heave and shake. It trembled, and Miss Pennington and Miss Dixon looked at each other with frightened eyes.
"It—it's like an earthquake," observed Ruth.
"Oh, look!" cried Alice.