The Lady in Blue by Fred M. White

All Kelso's sympathies were aroused now. He had forgotten everything in the vivid interest of the moment; he did not even stop to wonder why he had been chosen as the recipient of these strange confidences. He was anxious to hear the end of the story.

"There is very little more left to tell," the woman went on. "I was mad with rage and jealousy--call it wounded vanity if you like. I am told that there was a short struggle between us, in which a lamp was upset, and the long lace scarf that I was wearing round my neck caught fire.