"Did you ask any questions?" inquired Tom.
"Oh, indeed I did! As soon as I got over being stunned by what I heard, I asked all sorts of questions. I demanded to know who was speaking, what they meant, where they were, and all that. I begged them to tell me something of my husband."
"And what did they say?"
"Not a thing. There wasn't a sound in the telephone. The receiver was hung up, breaking the connection after that message to me—that mysterious message."
"Yes, it was mysterious," agreed Tom, thoughtfully. "I can't understand it. But didn't you try to learn from the central operator where the call had come from?"
"Oh, yes, indeed, Tom! As soon as I found out the person speaking to me had rung off, I got the girl in the exchange."
"And what did she say?"
"That the call came from an automatic pay station in a drug store in town. I have the address. It was one of those telephones where you put your money for the call in a slot."
"I see. Well, the first thing to do is for me to go to that drug store and find out, if I can, who used the telephone about that time. It's a