circles," as I have called them. One of them was set above the two others; and these two, which were smaller and less regular but exactly alike, seemed, instead of looking straight before them, to turn a little to the right and to the left. Where did they come from? And what did they mean?

"Look," repeated my uncle. "Do you see?"

"Yes, yes," I replied, with a shudder. "The thing's moving."

It was in fact moving. Or rather, no, it was not: the outlines of the geometrical figures remained stationary; and not a line shifted its place within. And yet from all this immobility something emerged which was nothing else than motion.

I now remembered my uncle's words:

"They're alive, aren't they? You can see them opening and showing alarm! They're alive!"

They were alive! The three triangles were alive! And, as soon as I experienced this precise and undeniable feeling that they were alive, I ceased to regard them as an assemblage of lifeless lines and began to see in them things which were like a sort of eyes, misshapen eyes, eyes different from ours, but eyes furnished with irises and pupils and throbbing in an abysmal darkness.

"They are looking at us!" I cried, quite beside myself and as feverish and unnerved as my uncle.

He nodded his head and whispered:

"Yes, that's what they're doing."

The three eyes were looking at us. We were conscious of the scrutiny of those three eyes, without lids or lashes, but full of an intense life which was due to the expression that animated them, a changing expression, by turns serious, proud, noble, enthusiastic and, above all, sad, grievously sad.

I feel how improbable these observations must appear. Nevertheless they correspond most strictly with the reality as it was beheld at a later date by the crowds that thronged to Haut-Meudon Lodge. Like my uncle, like myself, those crowds shuddered before three combinations of motionless lines which had the most heart-rending expression, just as at other moments they laughed at the comical or gayer expression which they were compelled to read into those same lines.

And on each occasion the spectacle which I am now describing was repeated in exactly the same order. A brief pause, followed by a series of vibrations. Then, suddenly, three eclipses, after which the combination of three triangles began to turn upon itself, as a whole, slowly at first and then with increasing rapidity, which gradually became transformed into so swift a rotation that one distinguished nothing but a motionless rose-pattern.

After that, nothing. The panel was empty.

CHAPTER III
AN EXECUTION

It must be understood that, notwithstanding the explanations which I must needs offer, the development of all these events took but very little time: exactly eighteen seconds, as I had the opportunity of calculating afterwards. But, during these eighteen seconds—and this again I observed on many an occasion—the spectator received the illusion of watching a complete drama, with its preliminary expositions, its plot and its culmination. And when this obscure, illogical drama was over, you questioned what you had seen, just as you question the nightmare which wakes you from your sleep.

Nevertheless it must be said that none of all this partook in any way of those absurd optical illusions which are so easily contrived or of those arbitrary ideas on which a whole pseudo-scientific novel is sometimes built up. There is no question of a novel, but of a physical phenomenon, an absolutely natural phenomenon, the explanation of which, when it comes to be known, is also absolutely natural.

And I beg those who are not acquainted with this explanation not to try to guess it. Let them not worry themselves with suppositions and interpretations. Let them forget, one by one, the theories over which I myself am lingering: all that has to do with B-rays, materializations, or the effect of solar heat. These are so many roads that lead nowhere. The best plan is to be guided by events, to have faith and to wait.

"It's finished, uncle, isn't it?" I asked.

"It's the beginning," he replied.

"How do you mean? The beginning of what? What's going to happen?"

"I don't know."

I was astounded:

"You don't know? But you knew just now, about this, about those strange eyes! . . ."

"It all starts with that. But other things come afterwards, things which vary and which I know nothing about!"

"But how can that be possible?" I asked. "Do you mean to say that you don't know anything about them, you who prepared everything for them?"

"I prepared them, but I do not control them. As I told you, I have opened a door which leads into the darkness; and from that darkness unforeseen images emerge."

"But is the thing that's coming of the same nature as those eyes?"

"No."

"Then what is it, uncle?"

"The thing that's coming will be a representation of images in conformity with what we are accustomed to see."

"Things which we shall understand, therefore?"

"Yes, we shall understand them; and yet they will be all the more incomprehensible."

I often wondered, during the weeks that followed, if my uncle's words were to be fully relied upon and if he had not uttered them in order to mislead me as to the origin and meaning of his discoveries. How indeed was it possible to think that the key to the riddle remained unknown to him? But at that moment I was wholly under his influence, steeped in the great mystery that surrounded us; and, with a constricted feeling at my heart, with all my overstimulated senses, I thought of nothing but gazing into the miraculous panel.

A movement on my uncle's part warned me. I gave a start. The dawn was rising over the grey surface.

I saw, first of all, a cloudy radiance whirling around a central point, towards which all the luminous spirals rushed and in which they were swallowed up while whirling upon themselves. Next, this point expanded into an ever wider circle, covered with a light, hazy veil which gradually dispersed, revealing a vague, floating image, like the apparitions raised by spiritualists and mediums at their sittings.

Then followed as it were a certain hesitation. The phantom image was striving with the diffuse shadow and seeking to attain life and light. Certain features became more pronounced. Outlines and separate planes took shape; and at last a flood of light issued from the phantom image and turned it into a dazzling picture, which seemed to be bathed in sunlight.

It was a woman's face.

I remember that at that moment my mental confusion was such that I felt like darting forward to feel the marvellous wall and lay my hands upon the living material in which the incredible phenomenon was vibrating. But my uncle dug his fingers into my arm:

"I won't have you move!" he growled. "If you budge an inch, the whole thing will fade away. Look!"

I did not move; indeed, I doubt whether I could have done so. My legs were giving way beneath me. Both of us, my uncle and I, dropped into a sitting posture on the fallen trunk of a tree.

"Look, look!" he commanded.

The woman's face had approached in our direction until it was twice the size of life. The first thing that struck us was the cap, which was that of a nurse, with the head-band tightly drawn over the forehead and the veil around the head. The features, handsome and regular and still young, wore that look of almost divine dignity which