“Well, that settles my mind,” said the stranger, in a tone of satisfaction. “I shall see the old woman and the kids very soon, thanks to your kindness.”

“Don't mention it,” said Walter complacently. “I feel indebted to you, rather, as you have given me much more than an equivalent for my money.”

“That is true, but under present circumstances money is worth a good deal to me. Now, if you don't mind I will go into the smoking-car and have a little smoke before we arrive. Will you join me?”

“No, sir, thank you; I don't smoke.”

“Good-day, then. Hope we shall meet again.”

Walter responded politely, and the stranger, rising, walked forward to the front part of the car and disappeared.

Walter detached the silver watch from the plated chain to which it was attached, substituted the new gold watch, and put the silver watch in his pocket. It occurred to him that if he should really need money it might be better for him to sell the silver watch and retain the gold one.

“I have made thirty dollars at the very least on my purchase,” he reflected, “for I am sure I can sell the watch for fifty dollars if I wish to do so. This is a white day for me, as the Romans used to say. I accept it as a good omen of success. I wish Doctor Mack and Nancy were here to see it. I think the doctor would give me credit for a little shrewdness.”

The car sped on perhaps a dozen miles farther, when the door opened and the conductor entered, followed by a stout man of perhaps fifty years of age, who looked flushed and excited.

“This gentleman has been robbed of his gold watch,” explained the conductor. “He is convinced that some one on the train has taken it. Of course, no one of you is suspected, but I will trouble you to show me your watches.”