“You make the glass invisible by putting it into a liquid of nearly the same refractive index; a transparent thing becomes invisible if it is put in any medium of almost the same refractive index. And if you will consider only a second, you will see also that the powder of glass might be made to vanish in air, if its refractive index could be made the same as that of air; for then there would be no refraction or reflection as the light passed from glass to air.”

“Yes, yes,” said Kemp. “But a man’s not powdered glass!”

“No,” said Griffin. “He’s more transparent!”

“Nonsense!”

“That from a doctor! How one forgets! Have you already forgotten your physics, in ten years? Just think of all the things that are transparent and seem not to be so. Paper, for instance, is made up of transparent fibres, and it is white and opaque only for the same reason that a powder of glass is white and opaque. Oil white paper, fill up the interstices between the particles with oil so that there is no longer refraction or reflection except at the surfaces, and it becomes as transparent as glass. And not only paper, but cotton fibre, linen fibre, wool fibre, woody fibre, and bone, Kemp, flesh, Kemp, hair, Kemp, nails and nerves, Kemp, in fact the whole fabric of a man except the red of his blood and the black pigment of hair, are all made up of transparent, colourless tissue. So little little suffices to make us visible one to the other. For the most part the fibres of a living creature are no more opaque than water.”

“Great Heavens!” cried Kemp. “Of course, of course! I was thinking only last night of the sea larvae and all jelly-fish!”

“Now you have me! And all that I knew and had in mind a year after I left London — six years ago. But I kept it to myself. I had to do my work under frightful disadvantages. Oliver, my professor, was a scientific bounder, a journalist by instinct, a thief of ideas — he was always prying! And you know the knavish system of the scientific world. I simply would not publish, and let him share my credit. I went on working; I got nearer and nearer making my formula into an experiment, a reality. I told no living soul, because I meant to flash my work upon the world with crushing effect and become famous at a blow. I took up the question of pigments to fill up certain gaps. And suddenly, not by design but by accident, I made a discovery in physiology.”

“Yes?”

“You know the red colouring matter of blood; it can be made white — colourless — and remain with all the functions it has now!”

Kemp gave a cry of incredulous amazement.

The Invisible Man rose and began pacing the little study. “You may well exclaim. I remember that night. It was late at night — in the daytime one was bothered with the gaping, silly students — and I worked then sometimes till dawn. It came suddenly, splendid and complete in my mind. I was alone; the laboratory was still, with the tall lights burning brightly and silently. In all my great moments I have been alone. ‘One could make an animal — a tissue — transparent! One could make it invisible! All except the pigments — I could be invisible!’ I said, suddenly realising what it meant to be an albino with such knowledge. It was overwhelming. I left the filtering I was doing, and went and stared out of the great window at the stars. ‘I could be invisible!’ I repeated.

He wandered a little longer, his voice growing weaker; but soon after I had given him his medicine, which he took like a child, with the remark, “If ever a seaman wanted drugs, it’s me,” he fell at last into a heavy, swoon–like sleep, in which I left him. What I should have done had all gone well I do not know. Probably I should have told the whole story to the doctor, for I was in mortal fear lest the captain should repent of his confessions and make an end of me. But as things fell out, my poor father died quite suddenly that evening, which put all other matters on one side. Our natural distress, the visits of the neighbours, the arranging of the funeral, and all the work of the inn to be carried on in the meanwhile kept me so busy that I had scarcely time to think of the captain, far less to be afraid of him.

He got downstairs next morning, to be sure, and had his meals as usual, though he ate little and had more, I am afraid, than his usual supply of rum, for he helped himself out of the bar, scowling and blowing through his nose, and no one dared to cross him. On the night before the funeral he was as drunk as ever; and it was shocking, in that house of mourning, to hear him singing away at his ugly old sea–song; but weak as he was, we were all in the fear of death for him, and the doctor was suddenly taken up with a case many miles away and was never near the house after my father’s death. I have said the captain was weak, and indeed he seemed rather to grow weaker than regain his strength. He clambered up and down stairs, and went from the parlour to the bar and back again, and sometimes put his nose out of doors to smell the sea, holding on to the walls as he went for support and breathing hard and fast like a man on a steep mountain. He never particularly addressed me, and it is my belief he had as good as forgotten his confidences; but his temper was more flighty, and allowing for his bodily weakness, more violent than ever. He had an alarming way now when he was drunk of drawing his cutlass and laying it bare before him on the table. But with all that, he minded people less and seemed shut up in his own thoughts and rather wandering. Once, for instance, to our extreme wonder, he piped up to a different air, a king of country love–song that he must have learned in his youth before he had begun to follow the sea.

So things passed until, the day after the funeral, and about three o’clock of a bitter, foggy, frosty afternoon, I was standing at the door for a moment, full of sad thoughts about my father, when I saw someone drawing slowly near along the road. He was plainly blind, for he tapped before him with a stick and wore a great green shade over his eyes and nose; and he was hunched, as if with age or weakness, and wore a huge old tattered sea–cloak with a hood that made him appear positively deformed. I never saw in my life a more dreadful–looking figure. He stopped a little from the inn, and raising his voice in an odd sing–song, addressed the air in front of him, “Will any kind friend inform a poor blind man, who has lost the precious sight of his eyes in the gracious defence of his native country, England—and God bless King George!—where or in what part of this country he may now be?”