following this for nearly a mile, shut off steam and the locomotive came to a stop.
Then the fellow applied a whistle to his lips. Several men approached the engine. He consulted with them, and came back to Ralph carrying a piece of rope.
"Fairbanks," he said, "we'll have to tie you for safe keeping for a while."
"Won't you explain this?" inquired Trevor, in a troubled way. "See here, men, I am due in the city. I will pay you handsomely to let us proceed on our trip."
"How much?" inquired the man who had acted as engineer.
"I have several hundred dollars with me."
"Not enough," retorted the man. "We want several thousand, seeing you are worth it."
"I haven't a thousand dollars in the world," declared Trevor.
"You are worth twenty thousand," insisted the man confidently. "We'll prove it to you a little later. Here," to his companion, "tie Fairbanks, leave the letter with him, and let us get out of this before anybody is missed."
"One word," said Ralph. "Are you people responsible for the disappearance of Mr. Griscom?"
"Perhaps," said the man. "He's all safe and sound—only out of the way of mischief for a
