"Alas, sir, all this will not help me. You forget, I have lost my brother under the most startling and dreadful circumstances. Again, I ask you, did you not see him as you came here? His black whiskers, his spectacles, his timid glance to right and left; think, do not these particulars recall his face to your memory?" "I am sorry to say I have never seen any one of the kind," said Phillipps, who had forgotten all about the missing brother. "But let me ask you a few questions. Did you notice whether Professor Gregg--" "Pardon me, sir, I have stayed too long. My employers will be expecting me. I thank you for your sympathy. Good bye." Before Mr. Phillipps had recovered from his amazement at this abrupt departure, Miss Lally had disappeared from his gaze, passing into the crowd that now thronged the approaches to the Empire. He walked home in a pensive frame of mind, and drank too much tea. At ten o'clock he had made his third brew, and had sketched out the outlines of a little work to be called _Protoplasmic Reversion_. INCIDENT OF THE PRIVATE BAR. Mr. Dyson often meditated at odd moments over the singular tale he had listened to at the Café de la Touraine. In the first place he cherished a profound conviction that the words of truth were scattered with a too niggardly and sparing hand over the agreeable history of Mr. Smith and the Black Gulf Cañon; and, secondly, there was the undeniable fact of the profound agitation of the narrator, and his gestures on the pavement, too violent to be simulated. The idea of a man going about London haunted by the fear of meeting a young man with spectacles struck Dyson as supremely ridiculous; he searched his memory for some precedent in romance, but without success; he paid visits at odd times to the little café, hoping to find Mr. Wilkins there; and he kept a sharp watch on the great generation of the spectacled men without much doubt that he would remember the face of the individual whom he had seen dart out of the Aerated Bread Shop. All his peregrinations and researches, however, seemed to lead to nothing of value, and Dyson needed all his warm conviction of his innate detective powers and his strong scent for mystery to sustain him in his endeavors. In fact, he had two affairs on hand; and every day, as he passed through streets crowded or deserted, and lurked in the obscure districts, and watched at corners, he was more than surprised to find that the affair of the gold coin persistently avoided him; while the ingenious Wilkins, and the young man with spectacles whom he dreaded, seemed to have vanished from the pavements.