The Common Denominator

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The common denominator, another adventure of George Valentine. Dear Mr. Valentine, I don't know exactly why I should spend money to save the life of someone I don't know, possibly of several people I don't know. I imagine it's because I'd like a little peace of mind, call it conscience or whatever you wish. At any rate I need

your help. I believe that together we may be able to prevent another murder. If the The idea appeals to you please call on me at the above address some evening this week. Come after nine o'clock when I can be sure we'll be alone.

I suggest you make it as soon as possible before the next tragedy. Sign Laura Krask. Now Mrs. Tran, suppose you tell us whose life is in danger and what you want us to do about it.

I don't know Mr. Valentine, I haven't the slightest idea who it will be. Yet? Yet, Mrs. Tran, what do you mean by that? Just what I say, Miss Brooks. may be no one at all, but after what's already happened, I can't take that chance.