This work was the beginning of a new and somewhat unusual relationship between us. Vance had a strong distaste for any kind of business transaction, and in time I became the custodian of all his monetary interests and his agent at large. I found that his affairs were various enough to occupy as much of my time as I cared to give to legal matters, and as Vance was able to indulge the luxury of having a personal legal factotum, so to speak, I permanently closed my desk at the office, and devoted myself exclusively to his needs and whims.

If, up to the time when Vance summoned me to discuss the purchase of the Cézannes, I had harbored any secret or repressed regrets for having deprived the firm of Van Dine, Davis and Van Dine of my modest legal talents, they were permanently banished on that eventful morning; for, beginning with the notorious Benson murder, and extending over a period of nearly four years, it was my privilege to be a spectator of what I believe was the most amazing series of criminal cases that ever passed before the eyes of a young lawyer. Indeed, the grim dramas I witnessed during that period constitute one of the most astonishing secret documents in the police history of this country.

Of these dramas Vance was the central character. By an analytical and interpretative process which, as far as I know, has never before been applied to criminal activities, he succeeded in solving many of the important crimes on which both the police and the District Attorney’s office had hopelessly fallen down.

Due to my peculiar relations with Vance it happened that not only did I participate in all the cases with which he was connected, but I was also present at most of the informal discussions concerning them which took place between him and the District Attorney; and, being of methodical temperament, I kept a fairly complete record of them. In addition, I noted down (as accurately as memory permitted) Vance’s unique psychological methods of determining guilt, as he explained them from time to time. It is fortunate that I performed this gratuitous labor of accumulation and transcription, for now that circumstances have unexpectedly rendered possible my making the cases public, I am able to present them in full detail and with all their various side-lights and succeeding steps—a task that would be impossible were it not for my numerous clippings and adversaria.

Fortunately, too, the first case to draw Vance into its ramifications was that of Alvin Benson’s murder. Not only did it prove one of the most famous of New York’s causes célèbres, but it gave Vance an excellent opportunity of displaying his rare talents of deductive reasoning, and, by its nature and magnitude, aroused his interest in a branch of activity which heretofore had been alien to his temperamental promptings and habitual predilections.

The case intruded upon Vance’s life suddenly and unexpectedly, although he himself had, by a casual request made to the District Attorney over a month before, been the involuntary agent of this destruction of his normal routine. The thing, in fact, burst upon us before we had quite finished our breakfast on that mid-June morning, and put an end temporarily to all business connected with the purchase of the Cézanne paintings. When, later in the day, I visited the Kessler Galleries, two of the water-colors that Vance had particularly desired had been sold; and I am convinced that, despite his success in the unravelling of the Benson murder mystery and his saving of at least one innocent person from arrest, he has never to this day felt entirely compensated for the loss of those two little sketches on which he had set his heart.

As I was ushered into the living-room that morning by Currie, a rare old English servant who acted as Vance’s butler, valet, major-domo and, on occasions, specialty cook, Vance was sitting in a large armchair, attired in a surah silk dressing-gown and grey suède slippers, with Vollard’s book on Cézanne open across his knees.

“Forgive my not rising, Van,” he greeted me casually. “I have the whole weight of the modern evolution in art resting on my legs. Furthermore, this plebeian early rising fatigues me, y’ know.”

He riffled the pages of the volume, pausing here and there at a reproduction.

“This chap Vollard,” he remarked at length, “has been rather liberal with our art-fearing country. He has sent a really goodish collection of his Cézannes here. I viewed ’em yesterday with the proper reverence and, I might add, unconcern, for Kessler was watching me; and I’ve marked the ones I want you to buy for me as soon as the Gallery opens this morning.”