There was, until a year ago, a little and very grimy-looking shop near Seven Dials, over which, in weather-worn yellow lettering, the name of “C. Cave, Naturalist and Dealer in Antiquities,” was inscribed. The contents of its window were curiously variegated. They comprised some elephant tusks and an imperfect set of chessmen, beads and weapons, a box of eyes, two skulls of tigers and one human, several moth-eaten stuffed monkeys (one holding a lamp), an old-fashioned cabinet, a fly-blown ostrich egg or so, some fishing-tackle, and an extraordinarily dirty, empty glass fish-tank. There was also, at the moment the story begins, a mass of crystal, worked into the shape of an egg and brilliantly polished. And at that two people who stood outside the window were looking, one of them a tall, thin clergyman, the other a black-bearded young man of dusky complexion and unobtrusive costume. The dusky young man spoke with eager gesticulation, and seemed anxious for his companion to purchase the article.

While they were there, Mr. Cave came into his shop, his beard still wagging with the bread and butter of his tea. When he saw these men and the object of their regard, his countenance fell. He glanced guiltily over his shoulder, and softly shut the door. He was a little old man, with pale face and peculiar watery blue eyes; his hair was a dirty grey, and he wore a shabby blue frock-coat, an ancient silk hat, and carpet slippers very much down at heel. He remained watching the two men as they talked. The clergyman went deep into his trouser pocket, examined a handful of money, and showed his teeth in an agreeable smile. Mr. Cave seemed still more depressed when they came into the shop.

The clergyman, without any ceremony, asked the price of the crystal egg. Mr. Cave glanced nervously towards the door leading into the parlour, and said five pounds. The clergyman protested that the price was high, to his companion as well as to Mr. Cave — it was, indeed, very much more than Mr. Cave had intended to ask when he had stocked the article — and an attempt at bargaining ensued. Mr. Cave stepped to the shop door, and held it open. “Five pounds is my price,” he said, as though he wished to save himself the trouble of unprofitable discussion. As he did so, the upper portion of a woman’s face appeared above the blind in the glass upper panel of the door leading into the parlour, and stared curiously at the two customers. “Five pounds is my price,” said Mr. Cave, with a quiver in his voice.

The swarthy young man had so far remained a spectator, watching Cave keenly. Now he spoke. “Give him five pounds,” he said. The clergyman glanced at him to see if he were in earnest, and when he looked at Mr. Cave again, he saw that the latter’s face was white. “It’s a lot of money,” said the clergyman, and, diving into his pocket, began counting his resources. He had little more than thirty shillings, and he appealed to his companion, with whom he seemed to be on terms of considerable intimacy. This gave Mr. Cave an opportunity of collecting his thoughts, and he began to explain in an agitated manner that the crystal was not, as a matter of fact, entirely free for sale. His two customers were naturally surprised at this, and inquired why he had not thought of that before he began to bargain. Mr. Cave became confused, but he stuck to his story, that the crystal was not in the market that afternoon, that a probable purchaser of it had already appeared. The two, treating this as an attempt to raise the price still further, made as if they would leave the shop. But at this point the parlour door opened, and the owner of the dark fringe and the little eyes appeared.

She was a coarse-featured, corpulent woman, younger and very much larger than Mr. Cave; she walked heavily, and her face was flushed. “That crystal is for sale,” she said. “And five pounds is a good enough price for it. I can’t think what you’re about, Cave, not to take the gentleman’s offer!”

Mr. Cave, greatly perturbed by the irruption, looked angrily at her over the rims of his spectacles, and, without excessive assurance, asserted his right to manage his business in his own way. An altercation began. The two customers watched the scene with interest and some amusement, occasionally assisting Mrs. Cave with suggestions. Mr. Cave, hard driven, persisted in a confused and impossible story of an inquiry for the crystal that morning, and his agitation became painful. But he stuck to his point with extraordinary persistence. It was the young Oriental who ended this curious controversy. He proposed that they should call again in the course of two days — so as to give the alleged inquirer a fair chance. “And then we must insist,” said the clergyman. “Five pounds.” Mrs. Cave took it on herself to apologise for her husband, explaining that he was sometimes “a little odd,” and as the two customers left, the couple prepared for a free discussion of the incident in all its bearings.

Mrs. Cave talked to her husband with singular directness. The poor little man, quivering with emotion, muddled himself between his stories, maintaining on the one hand that he had another customer in view, and on the other asserting that the crystal was honestly worth ten guineas. “Why did you ask five pounds?” said his wife. “Do let me manage my business my own way!” said Mr. Cave.

Mr. Cave had living with him a step-daughter and a step-son, and at supper that night the transaction was re-discussed. None of them had a high opinion of Mr. Cave’s business methods, and this action seemed a culminating folly.

“It’s my opinion he’s refused that crystal before,” said the step-son, a loose-limbed lout of eighteen.

“But Five Pounds!” said the step-daughter, an argumentative young woman of six-and-twenty.

Mr. Cave’s answers were wretched; he could only mumble weak assertions that he knew his own business best. They drove him from his half-eaten supper into the shop, to close it for the night, his ears aflame and tears of vexation behind his spectacles. Why had he left the crystal in the window so long? The folly of it! That was the trouble closest in his mind. For a time he could see no way of evading sale.

After supper his step-daughter and step-son smartened themselves up and went out and his wife retired upstairs to reflect upon the business aspects of the crystal, over a little sugar and lemon and so forth in hot water. Mr. Cave went into the shop, and stayed there until late, ostensibly to make ornamental rockeries for gold-fish cases, but really for a private purpose that will be better explained later. The next day Mrs. Cave found that the crystal had been removed from the window, and was lying behind some second-hand books on angling. She replaced it in a conspicuous position. But she did not argue further about it, as a nervous headache disinclined her from debate. Mr. Cave was always disinclined. The day passed disagreeably. Mr. Cave was, if anything, more absent-minded than usual, and uncommonly irritable withal. In the afternoon, when his wife was taking her customary sleep, he removed the crystal from the window again.

The next day Mr. Cave had to deliver a consignment of dog-fish at one of the hospital schools, where they were needed for dissection. In his absence Mrs. Cave’s mind reverted to the topic of the crystal, and the methods of expenditure suitable to a windfall of five pounds. She had already devised some very agreeable expedients, among others a dress of green silk for herself and a trip to Richmond, when a jangling of the front door bell summoned her into the shop. The customer was an examination coach who came to complain of the non-delivery of certain frogs asked for the previous day. Mrs. Cave did not approve of this particular branch of Mr. Cave’s business, and the gentleman, who had called in a somewhat aggressive mood, retired after a brief exchange of words — entirely civil, so far as he was concerned. Mrs. Cave’s eye then naturally turned to the window; for the sight of the crystal was an assurance of the five pounds and of her dreams. What was her surprise to find it gone!

She went to the place behind the locker on the counter, where she had discovered it the day before. It was not there; and she immediately began an eager search about the shop.

When Mr. Cave returned from his business with the dogfish, about a quarter to two in the afternoon, he found the shop in some confusion, and his wife, extremely exasperated and on her knees behind the counter, routing among his taxidermic material. Her face came up hot and angry over the counter, as the jangling bell announced his return, and she forthwith accused him of “hiding it.”

“Hid what?” asked Mr. Cave.

“The crystal!”

At that Mr. Cave, apparently much surprised, rushed to the window. “Isn’t it here?” he said. “Great Heavens! what has become of it?”

Just then Mr. Cave’s step-son re-entered the shop from, the inner room — he had come home a minute or so before Mr. Cave — and he was blaspheming freely. He was apprenticed to a second-hand furniture dealer down the road, but he had his meals at home, and he was naturally annoyed to find no dinner ready.

But when he heard of the loss of the crystal, he forgot his meal, and his anger was diverted from his mother to his step-father. Their first idea, of course, was that he had hidden it. But Mr. Cave stoutly denied all knowledge of its fate, freely offering his bedabbled affidavit in the matter — and at last was worked up to the point of accusing, first, his wife and then his stepson of having taken it with a view to a private sale. So began an exceedingly acrimonious and emotional discussion, which ended for Mrs. Cave in a peculiar nervous condition midway between hysterics and amuck, and caused the step-son to be half-an-hour late at the furniture establishment in the afternoon. Mr. Cave took refuge from his wife’s emotions in the shop.

In the evening the matter was resumed, with less passion and in a judicial spirit, under the presidency of the step-daughter. The supper passed unhappily and culminated in a painful scene. Mr. Cave gave way at last to extreme exasperation, and went out banging the front door violently. The rest of the family, having discussed him with the freedom his absence warranted, hunted the house from garret to cellar, hoping to light upon the crystal.

The next day the two customers called again. They were received by Mrs. Cave almost in tears. It transpired that no one could imagine all that she had stood from Cave at various times in her married pilgrimage. . . . She also gave a garbled account of the disappearance. The clergyman and the Oriental laughed silently at one another, and said it was very extraordinary. As Mrs. Cave seemed disposed to give them the complete history of her life they made to leave the shop. Thereupon Mrs. Cave, still clinging to hope, asked for the clergyman’s address, so that, if she could get anything out of Cave, she might communicate it. The address was duly given, but apparently was afterwards mislaid. Mrs. Cave can remember nothing about it.

In the evening of that day the Caves seem to have exhausted their emotions, and Mr. Cave, who had been out in the afternoon, supped in a gloomy isolation that contrasted pleasantly with the impassioned controversy of the previous days. For some time matters were very badly strained in the Cave household, but neither crystal nor customer reappeared.

Now, without mincing the matter, we must admit that Mr. Cave was a liar. He knew perfectly well where the crystal was. It was in the rooms of Mr. Jacoby Wace, Assistant Demonstrator at St. Catherine’s Hospital, Westbourne Street. It stood on the sideboard partially covered by a black velvet cloth, and beside a decanter of American whisky. It is from Mr. Wace, indeed, that the particulars upon which this narrative is based were derived. Cave had taken off the thing to the hospital hidden in the dog-fish sack, and there had pressed the young investigator to keep it for him. Mr. Wace was a little dubious at first. His relationship to Cave was peculiar. He had a taste for singular characters, and he had more than once invited the old man to smoke and drink in his rooms, and to unfold his rather amusing views of life in general and of his wife in particular. Mr. Wace had encountered Mrs. Cave, too, on occasions when Mr. Cave was not at home to attend to him. He knew the constant interference to which Cave was subjected, and having weighed the story judicially, he decided to give the crystal a refuge. Mr. Cave promised to explain the reasons for his remarkable affection for the crystal more fully on a later occasion, but he spoke distinctly of seeing visions therein. He called on Mr. Wace the same evening.

He told a complicated story. The crystal he said had come into his possession with other oddments at the forced sale of another curiosity dealer’s effects, and not knowing what its value might be, he had ticketed it at ten shillings. It had hung upon his hands at that price for some months, and he was thinking of “reducing the figure,” when he made a singular discovery.

At that time his health was very bad — and it must be borne in mind that, throughout all this experience, his physical condition was one of ebb — and he was in considerable distress by reason of the negligence, the positive ill-treatment even, he received from his wife and step-children. His wife was vain, extravagant, unfeeling, and had a growing taste for private drinking; his step-daughter was mean and over-reaching; and his step-son had conceived a violent dislike for him, and lost no chance of showing it. The requirements of his business pressed heavily upon him, and Mr. Wace does not think that he was altogether free from occasional intemperance. He had begun life in a comfortable position, he was a man of fair education, and he suffered, for weeks at a stretch, from melancholia and insomnia. Afraid to disturb his family, he would slip quietly from his wife’s side, when his thoughts became intolerable, and wander about the house. And about three o’clock one morning, late in August, chance directed him into the shop.

The dirty little place was impenetrably black except in one spot, where he perceived an unusual glow of light. Approaching this, he discovered it to be the crystal egg, which was standing on the corner of the counter towards the window. A thin ray smote through a crack in the shutters, impinged upon the object, and seemed as it were to fill its entire interior.

It occurred to Mr. Cave that this was not in accordance with the laws of optics as he had known them in his younger days. He could understand the rays being refracted by the crystal and coming to a focus in its interior, but this diffusion jarred with his physical conceptions. He approached the crystal nearly, peering into it and round it, with a transient revival of the scientific curiosity that in his youth had determined his choice of a calling. He was surprised to find the light not steady, but writhing within the substance of the egg, as though that object was a hollow sphere of some luminous vapour. In moving about to get different points of view, he suddenly found that he had come between it and the ray, and that the crystal none the less remained luminous. Greatly astonished, he lifted it out of the light ray and carried it to the darkest part of the shop. It remained bright for some four or five minutes, when it slowly faded and went out. He placed it in the thin streak of daylight, and its luminousness was almost immediately restored.

So far, at least, Mr. Wace was able to verify the remarkable story of Mr. Cave. He has himself repeatedly held this crystal in a ray of light (which had to be of a less diameter than one millimetre). And in a perfect darkness, such as could be produced by velvet wrapping, the crystal did undoubtedly appear very faintly phosphorescent. It would seem, however, that the luminousness was of some exceptional sort, and not equally visible to all eyes; for Mr. Harbinger — whose name will be familiar to the scientific reader in connection with the Pasteur Institute — was quite unable to see any light whatever. And Mr. Wace’s own capacity for its appreciation was out of comparison inferior to that of Mr. Cave’s. Even with Mr. Cave the power varied very considerably: his vision was most vivid during states of extreme weakness and fatigue.

Now, from the outset, this light in the crystal exercised a curious fascination upon Mr. Cave. And it says more for his loneliness of soul than a volume of pathetic writing could do, that he told no human being of his curious observations. He seems to have been living in such an atmosphere of petty spite that to admit the existence of a pleasure would have been to risk the loss of it. He found that as the dawn advanced, and the amount of diffused light increased, the crystal became to all appearance non-luminous. And for some time he was unable to see anything in it, except at night-time, in dark corners of the shop.

But the use of an old velvet cloth, which he used as a background for a collection of minerals, occurred to him, and by doubling this, and putting it over his head and hands, he was able to get a sight of the luminous movement within the crystal even in the day-time. He was very cautious lest he should be thus discovered by his wife, and he practised this occupation only in the afternoons, while she was asleep upstairs, and then circumspectly in a hollow under the counter. And one day, turning the crystal about in his hands, he saw something. It came and went like a flash, but it gave him the impression that the object had for a moment opened to him the view of a wide and spacious and strange country; and turning it about, he did, just as the light faded, see the same vision again.

Now it would be tedious and unnecessary to state all the phases of Mr. Cave’s discovery from this point. Suffice that the effect was this: the crystal, being peered into at an angle of about 137 degrees from the direction of the illuminating ray, gave a clear and consistent picture of a wide and peculiar country-side. It was not dream-like at all: it produced a definite impression of reality, and the better the light the more real and solid it seemed. It was a moving picture: that is to say, certain objects moved in it, but slowly in an orderly manner like real things, and, according as the direction of the lighting and vision changed, the picture changed also. It must, indeed, have been like looking through an oval glass at a view, and turning the glass about to get at different aspects.

Mr. Cave’s statements, Mr. Wace assures me, were extremely circumstantial, and entirely free from any of that emotional quality that taints hallucinatory impressions. But it must be remembered that all the efforts of Mr. Wace to see any similar clarity in the faint opalescence of the crystal were wholly unsuccessful, try as he would. The difference in intensity of the impressions received by the two men was very great, and it is quite conceivable that what was a view to Mr. Cave was a mere blurred nebulosity to Mr. Wace.

The view, as Mr. Cave described it, was invariably of an extensive plain, and he seemed always to be looking at it from a considerable height, as if from a tower ............