It was a thing, trivial enough, yet so strangely mystifying in its happening that the mind hesitated to accept it as an actual occurrence despite the indisputable evidence of the sense of hearing. As the seconds ticked on, Franklin Phillips was not at all certain that it had happened, and gradually the doubt began to assume the proportions of a conviction. Then, because his keenly-attuned brain did not readily explain it, the matter was dismissed as an impossibility. Certainly it had not happened. Mr. Phillips smiled a little. Of course, it was--it must be--a trick of his nerves.

But, even as the impossibility of the thing grew upon him, the musical clang still echoed vaguely in his memory, and his eyes were still fixed inquiringly on the Japanese gong whence it had come. The gong was of the usual type--six bronze discs, or inverted bowls, of graduated sizes, suspended one above the other, with the largest at the top, and quaintly colored with the deep, florid tones of Japan's ancient decorative art. It hung motionless at the end of a silken cord which dropped down sheerly from the ceiling over a corner of his desk. It was certainly harmless enough in appearance, yet--yet--

As he looked the bell sounded again. It was a clear, rich, vibrant note--a boom which belched forth suddenly as if of its own volition, quavered full-toned, then diminished until it was only a lingering sense of sound. Mr. Phillips started to his feet with an exclamation.

Now, in the money-marts of the world, Franklin Phillips was regarded as a living refutation of all theories as to the physical disasters consequent upon a long pursuit of the strenuous life--a human antithesis of nerves. He breathed fourteen times to the minute and his heart-beat was always within a fraction of seventy-one. This was true whether there were millions at stake in a capricious market or whether he ordered a cigar. In this calm lay the strength which had enabled him to reach his fiftieth year in perfect mental and physical condition.

Back of this utter normality was a placid, inquiring mind; so now, deliberately, he took a pencil and tapped the bells of the gong one after another, beginning at the bottom. The shrill note of the first told him instantly that was not the one which had sounded; nor was the second, nor the third. At the fourth he hesitated and struck a second time. Then he tapped the fifth. That was it. The gong trembled and swayed slightly from the blow, light as it was, and twice again he struck it. Then he was convinced.