“I have spent this day in accumulating details in regard to Dr. and Mrs. Zabriskie’s life previous to the death of Mr. Hasbrouck. I learned from sources it would be unwise to quote just here, that Mrs. Zabriskie had not lacked enemies ready to charge her with coquetry; that while she had never sacrificed her dignity in public, more than one person had been heard to declare, that Dr. Zabriskie was fortunate in being blind, since the sight of his wife’s beauty would have but poorly compensated him for the pain he would have suffered in seeing how that beauty was admired.

“That all gossip is more or less tinged with exaggeration I have no doubt, yet when a name is mentioned in connection with such stories, there is usually some truth at the bottom of them. And a name is mentioned in this case, though I do not think it worth my while to repeat it here; and loth as I am to recognize the fact, it is a name that carries with it doubts that might easily account for the husband’s jealousy. True, I have found no one who dares to hint that she still continues to attract attention or to bestow smiles in any direction save where they legally belong. For since a certain memorable night which we all know, neither Dr. Zabriskie nor his wife have been seen save in their own domestic circle, and it is not into such scenes that this serpent, of which I have spoken, ever intrudes, nor is it in places of sorrow or suffering that his smile shines, or his fascinations flourish.

“And so one portion of my theory is proved to be sound. Dr. Zabriskie is jealous of his wife: whether with good cause or bad I am not prepared to decide; for her present attitude, clouded as it is by the tragedy in which she and her husband are both involved, must differ very much from that which she held when her life was unshadowed by doubt, and her admirers could be counted by the score.

“I have just found out where Harry is. As he is in service some miles up the river, I shall have to be absent from my post for several hours, but I consider the game well worth the candle.

“Light at last. I have seen Harry, and, by means known only to the police, have succeeded in making him talk. His story is substantially this: That on the night so often mentioned, he packed his master’s portmanteau at eight o’clock and at ten called a carriage and rode with the Doctor to the Twenty-ninth Street station. He was told to buy tickets for Poughkeepsie where his master had been called in consultation, and having done this, hurried back to join his master on the platform. They had walked together as far as the cars, and Dr. Zabriskie was just stepping on to the train when a man pushed himself hurriedly between them and whispered something into his master’s ear, which caused him to fall back and lose his footing. Dr. Zabriskie’s body slid half under the car, but he was withdrawn before any harm was done, though the cars gave a lurch at that moment which must have frightened him exceedingly, for his face was white when he rose to his feet, and when Harry offered to assist him again on to the train, he refused to go and said he would return home and not attempt to ride to Poughkeepsie that night.

“The gentleman, whom Harry now saw to be Mr. Stanton, an intimate friend of Dr. Zabriskie, smiled very queerly at this, and taking the Doctor’s arm led him away to a carriage. Harry naturally followed them, but the Doctor, hearing his steps, turned and bade him, in a very peremptory tone, to take the omnibus home, and then, as if on second thought, told him to go to Poughkeepsie in his stead and explain to the people there that he was too shaken up by his mis-step to do his duty, and that he would be with them next morning. This seemed strange to Harry, but he had no reasons for disobeying his master’s orders, and so rode to Poughkeepsie. But the Doctor did not follow him the next day; on the contrary he telegraphed for him to return, and when he got back dismissed him with a month’s wages. This ended Harry’s connection with the Zabriskie family.

“A simple story bearing out what the wife has already told us; but it furnishes a link which may prove invaluable. Mr. Stanton, whose first name is Theodore, knows the real reason why Dr. Zabriskie returned home on the night of the seventeenth of July, 1851. Mr. Stanton, consequently, I must see, and this shall be my business to-morrow.

“Checkmate! Theodore Stanton is not in this country. Though this points him out as the man from whom Dr. Zabriskie bought the pistol, it does not facilitate my work, which is becoming more and more difficult.

“Mr. Stanton’s whereabouts are not even known to his most intimate friends. He sailed from this country most unexpectedly on the eighteenth of July a year ago, which was the day after the murder of Mr. Hasbrouck. It looks like a flight, especially as he has failed to maintain open communication even with his relatives. Was he the man who shot Mr. Hasbrouck? No; but he was the man who put the pistol in Dr. Zabriskie’s hand that night, and, whether he did this with purpose or not, was evidently so alarmed at the catastrophe which followed that he took the first outgoing steamer to Europe. So far, all is clear, but there are mysteries yet to be solved, which will require my utmost tact. What if I should seek out the gentleman with whose name that of Mrs. Zabriskie has been linked, and see if I can in any way connect him with Mr. Stanton or the events of that night?

“Eureka! I have discovered that Mr. Stanton cherished a mortal hatred for the gentleman above mentioned. It was a covert feeling, but no less deadly on that account; and while it never led him into any extravagances, it was of force sufficient to account for many a secret misfortune which happened to that gentleman. Now, if I can prove he was the Mephistopheles who whispered insinuations into the ear of our blind Faust, I may strike a fact that will lead me out of this maze.