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, 19—. Mr. Stanton, consequently, is the man to see, and this shall be my business tomorrow.

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 occurring to that gentleman. Now if I can prove that he is 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.

But how can I approach secrets so delicate without compromising the woman I feel bound to respect if only for the devoted love she manifests for her unhappy husband!

I shall have to appeal to Joe Smithers. This is something which I always hate to do, but as long as he will take money, and as long as he is fertile in resources for obtaining the truth from people I am myself unable to reach, I must make use of his cupidity and his genius. He is an honourable fellow in one way, and never retails as gossip what he acquires for our use. How will he proceed in this case, and by what tactics will he gain the very delicate information which we need? I own that I am curious to see.

I shall really have to put down at length the incidents of this night. I always knew that Joe Smithers was invaluable not only to myself but to the police, but I really did not know he possessed talents of so high an order. He wrote me this morning that he had succeeded in getting Mr. T—‘s promise to spend the evening with him, and advised me that if I desired to be present as well, his own servant would not be at home, and that an opener of bottles would be required.

As I was very anxious to see Mr. T—— with my own eyes, I accepted this invitation to play the spy, and went at the proper hour to Mr. Smithers’s rooms. I found them picturesque in the extreme. Piles of books stacked here and there to the ceiling made nooks and corners which could be quite shut off by a couple of old pictures set into movable frames capable of swinging out or in at the whim or convenience of the owner.

As I had use for the dark shadows cast by these pictures, I pulled them both out, and made such other arrangements as appeared likely to facilitate the purpose I had in view; then I sat down and waited for the two gentlemen who were expected to come in together.

They arrived almost immediately, whereupon I rose and played my part with all necessary discretion. While ridding Mr. T—— of his overcoat, I stole a look at his face. It is not a handsome one, but it boasts of a gay, devil-may-care expression which doubtless makes it dangerous to many women, while his manners are especially attractive, and his voice the richest and most persuasive that I ever heard. I contrasted him, almost against my will, with Dr. Zabriskie, and decided that with most women the former’s undoubted fascinations of speech and bearing would outweigh the latter’s great beauty and mental endowments; but I doubted if they would with her.