whose every operation had reached him in the natural course of business, and every one of which he had studied in minutest detail. It had begun through that--but at the bottom of it was his own restless, adventurous spirit. He had meant to set the police by the ears, using his gray-seal device both as an added barb and that no innocent bystander of the underworld, innocent for once, might be involved--he had meant to laugh at them and puzzle them to the verge of madness, for in the last analysis they would find only an abortive attempt at crime--and he had succeeded. And then he had gone too far--and he had been caught--by HER. That string of pearls, which, to study whose effect facetiously, he had so idiotically wrapped around his wrist, and which, so ironically, he had been unable to loosen in time and had been forced to carry with him in his sudden, desperate dash to escape from Marx's the big jeweler's, in Maiden Lane, whose strong room he had toyed with one night, had been the lever which, AT FIRST, she had held over him. The bus was on Fifth Avenue now, and speeding rapidly down the deserted thoroughfare. Jimmie Dale looked up at the lighted windows of the St. James Club as they went by, smiled whimsically, and shifted in his seat, seeking a more comfortable position. She had caught him--how he did not know--he had never seen her--did not know who she was, though time and again he had devoted all his energies for months at a stretch to a solution of the mystery. The morning following the Maiden Lane affair, indeed, before he had breakfasted, Jason had brought him the first letter from her. It had started by detailing his every move of the night before--and it had ended with an ultimatum: "The cleverness, the originality of the Gray Seal as a crook lacked but one thing," she had naively written, "and that one thing was that his crookedness required a leading string to guide it into channels that were worthy of his genius." In a word, SHE would plan the coups, and he would act at her dictation and execute them--or else how did twenty years in Sing Sing for that little Maiden Lane affair appeal to him? He was to answer by the next morning, a simple "yes" or "no" in the personal column of the morning NEWS-ARGUS.A threat to a man like Jimmie Dale was like flaunting a red rag at a bull, and a rage ungovernable had surged upon him. Then cold reason had come. He was caught--there was no question about that--she had taken pains to show him that he need make no mistake there. Innocent enough in his own conscience, as far as actual theft went, for the pearls would in due course be restored in some way to the possession of their owner, he would have been unable