when I found Austin Hall's son and widow, they would put into my hands an unknown, unpublished fantasy novel by Hall: THE HOUSE OF DAWN! Some day it may appear in print.

Meanwhile you are getting understandably impatient to explore that unknown realm of the Blind Spot. Be on your way, and bon voyage!

FORREST J ACKERMAN, Beverley Hills, Calif.

PROLOGUE

Perhaps it were just as well to start at the beginning. A mere matter of news.

All the world at the time knew the story; but for the benefit of those who have forgotten I shall repeat it. I am merely giving it as I have taken it from the papers with no elaboration and no opinion—a mere statement of facts. It was a celebrated case at the time and stirred the world to wonder. Indeed, it still is celebrated, though to the layman it is forgotten.

It has been labelled and indexed and filed away in the archives of the profession. To those who wish to look it up it will be spoken of as one of the great unsolved mysteries of the century. A crime that leads two ways, one into murder—sordid, cold and calculating; and the other into the nebulous screen that thwarts us from the occult.

Perhaps it is the character of Dr. Holcomb that gives the latter. He was a great man and a splendid thinker. That he should have been led into a maze of cheap necromancy is, on the face, improbable. He had a wonderful mind. For years he had been battering down the scepticism that had bulwarked itself in the material.

He was a psychologist, and up to the day the greatest, perhaps, that we have known. He had a way of going out before his fellows—it is the way of genius—and he had gone far, indeed, before them. If we would trust Dr. Holcomb we have much to live for; our religion is not all hearsay and there is a great deal in science still unthought of. It is an unfortunate case; but there is much to be learned in the circumstance that led the great doctor into the Blind Spot.

I. — RHAMDA AVEC

On a certain foggy morning in September, 1905, a tall man wearing a black overcoat and bearing in one hand a small satchel of dark-reddish leather descended from a Geary Street tram at the foot of Market Street, San Francisco. It was a damp morning; a mist was brooding over the city blurring all distinctness.

The man glanced about him; a tall man of trim lines and distinctness and a quick, decided step and bearing. In the shuffle of descending passengers he was outstanding, with a certain inborn grace that without the blood will never come from training. Men noticed and women out of instinct cast curious furtive glances and then turned away; which was natural, inasmuch as the man was plainly old. But for all that many ventured a second glance—and wondered.

An old man with the poise of twenty, a strange face of remarkable features, swarthy, of an Eastern cast, perhaps Indian; whatever the certainty of the man's age there was still a lingering suggestion of splendid youth. If one persisted in a third or fourth look this suggestion took an almost certain tone, the man's age dwindled, years dropped from him, and the quizzical smile that played on the lips seemed a foreboding of boyish laughter.

We say foreboding because in this case it is not mistaken diction. Foreboding suggests coming evil; the laughter of boys is wholehearted. It was merely that things were not exactly as they should be; it was not natural that age should be so youthful. The fates were playing, and in this case for once in the world's history their play was crosswise.

It is a remarkable case from the beginning and we are starting from facts. The man crossed to the window of the Key Route ferry and purchased a ticket for Berkeley, after which, with the throng, he passed the turnstile and on to the boat that was waiting. He took the lower deck, not from choice, apparently, but more because the majority of his fellow passengers, being men, were bound in this direction. The same chance brought him to the cigar-stand. The men about him purchased cigars and cigarettes, and as is the habit of all smokers, strolled off with delighted relish. The man watched them. Had anyone noticed his eyes he would have noted a peculiar colour and a light of surprise. With the prim step that made him so distinctive he advanced to the news-stand.

"Pardon me; but I would like to purchase one of those." Though he spoke perfect English it was in a strange manner, after the fashion of one who has found something that he has just learned how to use. At the same time he made a suggestion with his tapered fingers indicating the tobacco in the case. The clerk looked up.

"A cigar, sir? Yes, sir. What will it be?"

"A cigar?" Again the strange articulation. "Ah, yes, that is it. Now I remember. And it has a little sister, the cigarette. I think I shall take a cigarette, if—if—if you will show me how to use it."

It was a strange request. The clerk was accustomed to all manner of men and their brands of humour; he was about to answer in kind when he looked up and into the man's eyes. He started.

"You mean," he asked, "that you have never seen a cigar or cigarette; that you do not know how to use them? A man as old as you are."

The stranger laughed. It was rather resentful, but for all that of a hearty taint of humour.

"So old? Would you say that I am as old as that; if you will look again—"

The young man did and what he beheld is something that he could not quite account for: the strange conviction of this remarkable man; of age melting into youth, of an uncertain freshness, the smile, not of sixty, but of twenty. The young man was not one to argue, whatever his wonder; he was first of all a lad of business; he could merely acquiesce.

"The first time! This is the first time you have ever seen a cigar or cigarette?"

The stranger nodded.

"The first time. I have never beheld one of them before this morning. If you will allow me?" He indicated a package. "I think I shall take one of these."

The clerk took up the package, opened the end, and shook out a single cigarette. The man lit it and, as the smoke poured out of his mouth, held the cigarette tentatively in his fingers.

"Like it?" It was the clerk who asked.

The other did not answer, his whole face was the expression of having just discovered one of the senses. He was a splendid man and, if the word may be employed of the sterner sex, one of beauty. His features were even; that is to be noted, his nose chiselled straight and to perfection, the eyes of a peculiar sombreness and lustre almost burning, of a black of such intensity as to verge into red and to be devoid of pupils, and yet, for all of that, of a glow and softness. After a moment he turned to the clerk.

"You are young, my lad."

"Twenty-one, sir."

"You are fortunate. You live in a wonderful age. It is as wonderful as your tobacco. And you still have many great things before you."

"Yes, sir."

The man walked on to the forward part of the boat; leaving the youth, who had been in a sort of daze, watching. But it was not for long. The whole thing had been strange and to the lad almost inexplicable. The man was not insane, he was certain; and he was just as sure that he had not been joking. From the start he had been taken by the man's refinement, intellect and education. He was positive that he had been sincere. Yet—

The ferry detective happened at that moment to be passing. The clerk made an indication with his thumb.

"That man yonder," he spoke, "the one in black. Watch him." Then he told his story. The detective laughed and walked forward.

It was a most fortunate incident. It was a strange case. That mere act of the cigar clerk placed the police on the track and gave to the world the only clue