Mary Blake was an overgrown girl in the school downstairs. She was a most pervasive lass--“a perfect romp.” We all knew her well. She belonged to a family prominent in our growing town, and although my family and hers were not intimate they no doubt would have thought they were had they unexpectedly met for instance on the spiral stairway of 7 Rue Scribe. There were two sons and four daughters in Mary’s family and none of them was named Jane. This is important. Years elapsed. I had spent considerable time abroad, I had been occupied in growing up, in going to school, in preparing for college. There were still four Blake girls, but my interest in them was vague, collective. Then one day I heard of the marriage of Jane Blake, which surprised me somewhat as there had never been a Jane Blake. This led a short time later to my expressing to Mrs. Blake a belated interest in Mary, at which Mrs. Blake looked mystified for a moment and then said, “I think you must mean Susan.” I didn’t mean Susan but I refrained from saying so, and since then I have been haunted by the mystery of Mary Blake. Apparently there is no Mary Blake and never was one, although in answer to my feverish questionings several persons who were at Mrs. White’s with her have assured me that they remember her perfectly. Every now and then I meet Jane Blake and talk to her, wondering the while if she can be Mary. That she is dark and Mary was blonde is perhaps negligible. Once I sat next to Jane at dinner and when, after a pause in our conversation, I said, “Come, now--aren’t you really your sister who died?” She answered coldly that none of her sisters had ever died and immediately afterward refused to let the servant help her to any more champagne.