"Ha! ha!" thought I to myself. "It's never too hot for Mr. Sneak to get in his fine work. I wonder whose stuff he is after?"

Turning over flat on my stomach so that I might the more readily observe the man's movements, and breathing pianissimo lest he in turn should observe mine, I watched him as he climbed. Up he came as silently as the midnight mouse upon a soft carpet--up past the Jorkins apartments on the second floor; up stealthily by the Tinkletons' abode on the third; up past the fire-escape Italian garden of little Mrs. Persimmon on the fourth; up past the windows of the disagreeable Garraways' kitchen below mine, and then, with the easy grace of a feline, zip! he silently landed within reach of my hand on my own little iron veranda, and craning his neck to one side, peered in through the open window and listened intently for two full minutes.

"Humph!" whispered my inner consciousness to itself. "He is the coolest thing I've seen since last Christmas left town. I wonder what he is up to? There's nothing in my apartment worth stealing, now that my wife and children are away, unless it be my Jap valet, Nogi, who might make a very excellent cab driver if I could only find words to convey to his mind the idea that he is discharged."

And then the visitor, apparently having correctly assured himself that there was no one within, stepped across the window sill and vanished into the darkness of my kitchen. A moment later I too entered the window in pursuit, not so close a one, however, as to acquaint him with my proximity. I wanted to see what the chap was up to; and also being totally unarmed and ignorant as to whether or not he carried dangerous weapons, I determined to go slow for a little while. Moreover, the situation was not wholly devoid of novelty, and it seemed to me that here at last was abundant opportunity for a new sensation. As he had entered, so did he walk cautiously along the narrow bowling alley that serves for a hallway connecting my drawing-room and library with the dining-room, until he came to the library, into which he disappeared. This was not reassuring to me, because, to tell the truth, I value my books more than I do my plate, and if I were to be robbed I should much have preferred his taking my plated plate from the dining-room than any one of my editions-deluxe sets of the works of Marie Corelli, Hall Caine, and other standard authors from the library shelves. Once in the library, he quietly drew the shades at the windows thereof to bar possible intruding eyes from without, turned on the electric lights, and proceeded to go through my papers as calmly and coolly as though they were his own. In a short time, apparently, he found what he wanted in the shape of a royalty statement recently received by me from my publishers, and, lighting one of my cigars from a bundle of brevas in front of him, took off his coat and sat down to peruse the statement of my returns. Simple though it was, this act aroused the first feeling of resentment in my breast, for the relations between the author and his publishers are among the most sacred confidences of life, and the peeping Tom who peers through a keyhole at the courtship of a young man engaged in wooing his fiancee is no worse an intruder than he who would tear aside the veil of secrecy which screens the official returns of a "best seller" from the public eye.