Colonel Newcomb again gave them an approving nod.

Dick noticed that the fires in the engine were now well covered, and that no sparks came from the smoke-stack.

Standing by it he could see the long shape of the train running back in the darkness, but it would have been invisible to any one a hundred yards away.
"You think we're thoroughly hidden now, Canby ?" said the colonel.
"Yes, sir.

Unless they've located us precisely on advance information.
I don't see how they could find us among the mountains in all this darkness and rain." "But they've had the advance information! Look there!" exclaimed Major Hertford, pointing toward the high ridge that lay on their right.
A beam of light had appeared on the loftiest spur, standing out at first like a red star in the darkness, then growing intensely brighter, and burning with a steady, vivid light.

The effect was weird and powerful.
The mountain beneath it was invisible, and it seemed to burn there like a real eye, wrathful and menacing.