Just who was their 'Mutual Friend'?
I've often wondered who the one person would be - perhaps Lizzie, since she knew everyone - upper and lower classes all. Sometimes I also think it is the river, since it affected every one in the story. If it is the river, it would have to be "friend" in quotation marks since it wasn't exactly friendly to several of the shadier characters and, in fact, proved to be their downfall.
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