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162 into faintness once more. Occasionally it was so loud that Mrs. Damon could not hear the talk about the papers, and the man would have to repeat.

But finally he came to an end.

"This is all now," he said, sharply. Tom heard the words above the queer, buzzing, humming sound. "You are keeping me too long. I think you are up to some game, but it won't do you any good, Mrs. Damon. I'll 'phone you to-morrow where to send the papers. And if you don't send them—if you try any tricks—it will be the worse for you and Mr. Damon!"

There was a click, that told of a receiver being placed back on the hook, and the voice ceased. So, also, did the queer, buzzing sound over which Tom puzzled.

"What can it have been?" he asked. "Did you hear it, Mrs. Damon?"

"What, Tom?"

"That buzzing sound.

"Yes, I heard, but I didn't know what it was. Oh, Tom, what shall I do?"

"Don't worry. We'll see if anything happened. They may have caught that fellow. If not I'll plan another scheme."

Tom's first act was to call up the telephone exchange to learn where the second call had come