“Good for you,” said Ralph, and he started back to the relay station.

“Mr. Glidden,” he spoke rapidly, as he came again into the operating room. “There is no time to lose. All we know is that a wild engine is to be sent down the north branch.”

“Yes, that’s all we know, and no way to stop it,” replied Glidden.

“There may be a way. Ninety-three is fired up for a fly down the dump to Acton.”

“Aha!” nodded the old operator, pricking up his ears with interest.

“I don’t say it, but it may be that we can get to the branch before the runaway does.”

“Suppose so?”

“We’ll set the switch and ditch her.”

“Good boy!”

“I have no orders, though.”