What on earth was he, — man or beast? What did he want with me? I had no weapon, not even a stick. Flight would be madness. At any rate the Thing, whatever it was, lacked the courage to attack me. Setting my teeth hard, I walked straight towards him. I was anxious not to show the fear that seemed chilling my backbone. I pushed through a tangle of tall white-flowered bushes, and saw him twenty paces beyond, looking over his shoulder at me and hesitating. I advanced a step or two, looking steadfastly into his eyes.

“Who are you?” said I.

He tried to meet my gaze. “No!” he said suddenly, and turning went bounding away from me through the undergrowth. Then he turned and stared at me again. His eyes shone brightly out of the dusk under the trees.

My heart was in my mouth; but I felt my only chance was bluff, and walked steadily towards him. He turned again, and vanished into the dusk. Once more I thought I caught the glint of his eyes, and that was all.

For the first time I realised how the lateness of the hour might affect me. The sun had set some minutes since, the swift dusk of the tropics was already fading out of the eastern sky, and a pioneer moth fluttered silently by my head. Unless I would spend the night among the unknown dangers of the mysterious forest, I must hasten back to the enclosure. The thought of a return to that pain-haunted refuge was extremely disagreeable, but still more so was the idea of being overtaken in the the open by darkness and all that darkness might conceal. I gave one more look into the blue shadows that had swallowed up this odd creature, and then retraced my way down the slope towards the stream, going as I judged in the direction from which I had come.

I walked eagerly, my mind confused with many things, and presently found myself in a level place among scattered trees. The colourless clearness that comes after the sunset flush was darkling; the blue sky above grew momentarily deeper, and the little stars one by one pierced the attenuated light; the interspaces of the trees, the gaps in the further vegetation, that had been hazy blue in the daylight, grew black and mysterious. I pushed on. The colour vanished from the world. The tree-tops rose against the luminous blue sky in inky silhouette, and all below that outline melted into one formless blackness. Presently the trees grew thinner, and the shrubby undergrowth more abundant. Then there was a desolate space covered with a white sand, and then another expanse of tangled bushes. I did not remember crossing the sand-opening before. I began to be tormented by a faint rustling upon my right hand. I thought at first it was fancy, for whenever I stopped there was silence, save for the evening breeze in the tree-tops. Then when I turned to hurry on again there was an echo to my footsteps.

I turned away from the thickets, keeping to the more open ground, and endeavouring by sudden turns now and then to surprise something in the act of creeping upon me. I saw nothing, and nevertheless my sense of another presence grew steadily. I increased my pace, and after some time came to a slight ridge, crossed it, and turned sharply, regarding it steadfastly from the further side. It came out black and clear-cut against the darkling sky; and presently a shapeless lump heaved up momentarily against the sky-line and vanished again. I felt assured now that my tawny-faced antagonist was stalking me once more; and coupled with that was another unpleasant realisation, that I had lost my way.

“Confident as I am that you will not trifle with this appeal, my heart sinks and my hand trembles at the bare thought of such a possibility. Think of me at this hour, in a strange place, labouring under a blackness of distress that no fancy can exaggerate, and yet well aware that, if you will but punctually serve me, my troubles will roll away like a story that is told. Serve me, my dear Lanyon, and save

“Your friend,

“H. J.”

“P. S. I had already sealed this up when a fresh terror struck upon my soul. It is possible that the post-office may fail me, and this letter not come into your hands until to-morrow morning. In that case, dear Lanyon, do my errand when it shall be most convenient for you in the course of the day; and once more expect my messenger at midnight. It may then already be too late; and if that night passes without event, you will know that you have seen the last of Henry Jekyll.”

Upon the reading of this letter, I made sure my colleague was insane; but till that was proved beyond the possibility of doubt, I felt bound to do as he requested. The less I understood of this farrago, the less I was in a position to judge of its importance; and an appeal so worded could not be set aside without a grave responsibility. I rose accordingly from table, got into a hansom, and drove straight to Jekyll’s house. The butler was awaiting my arrival; he had received by the same post as mine a registered letter of instruction, and had sent at once for a locksmith and a carpenter. The tradesmen came while we were yet speaking; and we moved in a body to old Dr. Denman’s surgical theatre, from which (as you are doubtless aware) Jekyll’s private cabinet is most conveniently entered. The door was very strong, the lock excellent; the carpenter avowed he would have great trouble and have to do much damage, if force were to be used; and the locksmith was near despair. But this last was a handy fellow, and after two hours’ work, the door stood open. The press marked E was unlocked; and I took out the drawer, had it filled up with straw and tied in a sheet, and returned with it to Cavendish Square.

Here I proceeded to examine its contents. The powders were neatly enough made up, but not with the nicety of the dispensing chemist; so that it was plain they were of Jekyll’s private manufacture; and when I opened one of the wrappers I found what seemed to me a simple crystalline salt of a white colour. The phial, to which I next turned my attention, might have been about half-full of a blood-red liquor, which was highly pungent to the sense of smell and seemed to me to contain phosphorus and some volatile ether. At the other ingredients I could make no guess. The book was an ordinary version-book and contained little but a series of dates. These covered a period of many years, but I observed that the entries ceased nearly a year ago and quite abruptly. Here and there a brief remark was appended to a date, usually no more than a single word: “double” occurring perhaps six times in a total of several hundred entries; and once very early in the list and followed by several marks of exclamation, “total failure!!!” All this, though it whetted my curiosity, told me little that was definite. Here were a phial of some tincture, a paper of some salt, and the record of a series of experiments that had led (like too many of Jekyll’s investigations) to no end of practical usefulness. How could the presence of these articles in my house affect either the honour, the sanity, or the life of my flighty colleague? If his messenger could go to one place, why could he not go to another? And even granting some impediment, why was this gentleman to be received by me in secret? The more I reflected the more convinced I grew that I was dealing with a case of cerebral disease: and though I dismissed my servants to bed, I loaded an old revolver, that I might be found in some posture of self-defence.