The story told me was very simple. Dr. Zabriskie had not been born blind, but had become so after a grievous illness which had stricken him down soon after he received his diploma. Instead of succumbing to an affliction which would have daunted most men, he expressed his intention of practising his profession, and soon became so successful in it that he found no difficulty in establishing himself in one of the best-paying quarters of the city. Indeed, his intuition seemed to have developed in a remarkable degree after his loss of sight, and he seldom, if ever, made a mistake in diagnosis. Considering this fact, and the personal attractions which gave him distinction, it was no wonder that he soon became a popular physician whose presence was a benefaction and whose word a law. He had been engaged to be married at the time of his illness, and, when he learned what was likely to be its results, had offered to release the young lady from all obligation to him. But she would not be released, and they were married. This had taken place some five years previous to Mr. Hasbrouck’s death, three of which had been spent by them in Lafayette Place. So much for the beautiful woman next door. There being absolutely no clue to the assailant of Mr. Hasbrouck, I naturally looked forward to the inquest for some evidence upon which to work. But there seemed to be no underlying facts to this tragedy. The most careful study into the habits and conduct of the deceased brought nothing to light save his general beneficence and rectitude, nor was there in his history or in that of his wife any secret or hidden obligation calculated to provoke any such act of revenge as murder. Mrs. Hasbrouck’s surmise that the intruder was simply a burglar, and that she had rather imagined than heard the words that pointed to the shooting as a deed of vengeance, soon gained general credence. But, though the police worked long and arduously in this new direction, their efforts were without fruit, and the case bade fair to remain an unsolvable mystery. But the deeper the mystery the more persistently does my mind cling to it, and some five months after the matter had been delegated to oblivion, I found myself starting suddenly from sleep, with these words ringing in my ears: “_Who uttered the scream that gave the first alarm of Mr. Hasbrouck’s violent death?_” I was in such a state of excitement that the perspiration stood out on my forehead. Mrs. Hasbrouck’s story of the occurrence returned to me, and I remembered as distinctly as if she were then speaking, that she had expressly stated that she did not scream when confronted by the sight of her husband’s dead body. But some one had screamed, and that very loudly. Who was it, then? One of the maids, startled by the sudden summons from below, or some one else—some involuntary witness of the crime, whose testimony had been suppressed at the inquest, by fear or influence?