Vance was projected into the Benson murder as the result of a direct challenge from Markham; and his activities in the Canary case were due to his own expressed desire to lend a hand. But pure coincidence was responsible for his participation in the Greene investigation. During the two months that had elapsed since his solution of the Canary's death Markham had called upon him several times regarding moot points of criminal detection in connection with the routine work of the District Attorney's office; and it was during an informal discussion of one of these problems that the Greene case was first mentioned.
Markham and Vance had long been friends. Though dissimilar in tastes and even in ethical outlook, they nevertheless respected each other profoundly. I have often marvelled at the friendship of these two antipodal men; but as the years went by I came more and more to understand it. It was as if they were drawn together by those very qualities which each realized—perhaps with a certain repressed regret—were lacking in his own nature. Markham was forthright, brusque, and, on occasion, domineering, taking life with grim and serious concern, and following the dictates of his legal conscience in the face of every obstacle: honest, incorruptible, and untiring. Vance, on the other hand, was volatile, debonair, and possessed of a perpetual Juvenalian cynicism, smiling ironically at the bitterest realities, and consistently fulfilling the rôle of a whimsically disinterested spectator of life. But, withal, he understood people as profoundly as he understood art, and his dissection of motives and his
