“But, sir, thy name!” I insisted.

“Forgot it years ago,” was his remarkable answer.

“But surely, sir,” I exclaimed rather testily, “thou art not the sole inhabitant of this beautiful under world,—thou hast kinsman, wife, family?”

“Ay, gentle stranger,” he replied in slow and measured tones, “there are people farther along the shore, and they are good, dear souls, although I have forgotten their names, and I have, too, a very faint recollection that two of those people are sons of mine. Stop! no, their names are gone from me too, I forgot them the day my own name slipped from my mind!” and as he uttered these words he threw his head back with a sudden jerk and I heard a strange click inside of it, as if something had slipped from its place, and that instant a mysterious expression used by that Master of Masters, Don Fum, flashed through my mind.

Rattlebrains! Yes, that was it; and now I felt sure that I was standing in the presence of one of the curious folk inhabiting the World within a World, to whom Don Fum had given the strange name of Rattlebrains, or Happy Forgetters.

I was so delighted that I could barely keep myself from rushing up to this gentle-visaged and mild-mannered person, whose head had just given forth the sharp click, and grasping him by the hand. But I feared to shock him by such a friendly greeting, and so I contented myself with crying out,—

“Sir, thou seest before thee none other than the famous traveller, Baron Sebastian von Troomp!” but to my great amazement and greater chagrin he simply turned his strange eyes, with the far-away look, upon me for an instant, and then resumed his contemplation of the beautifully tinted sheet of water, as if I hadn’t opened my mouth. It was the most extraordinary treatment that I had experienced since my descent into the under world, and I was upon the point of resenting it, as became a true knight and especially a von Troomp, when Don Fum’s brief description of the Rattlebrains, or Happy Forgetters, flitted through my mind.

Said he, “By the exercise of their strong wills they have been busy for ages striving to unload their brains of the to them now useless stock of knowledge accumulated by their ancestors, and the natural consequence has been that the brains of these curious folk, who call themselves the Happy Forgetters, relieved of all labor and strain of thought, have absolutely shrunken rather than increased in size, so that with many of the Happy Forgetters their brains are like the shrivelled kernel of a last year’s nut and give forth a sharp click when they move their heads suddenly with a jerk, as is often their wont, for they take great pride in proving to the listener that they deserve the name of Rattlebrain.

“Nor do I need remind thee, O reader,” concluded Don Fum, in his celebrated work on the “World within a World,” “that the chiefest among the Happy Forgetters is the man whose head gives forth the loudest and sharpest click; for he it is who has forgotten most.”

You can have but a faint idea, dear friends, of my delight at the prospect of spending some time among these curious people—people who look with absolute dread upon knowledge as the one thing necessary to get rid of before happiness can enter the human heart.