"St. Paul's had just chimed the half-hour--half-past ten--when my pipe went out. Before I had time to re-light it, came the d.a.m.nable smell again. At the moment nothing was farther from my mind, and I jumped up with an exclamation of disgust. It seemed to be growing stronger and stronger. I got my pipe alight quickly. Still I could smell it; the aroma of the tobacco did not lessen its beastly pungency in the smallest degree.

"I tilted the shade of my reading-lamp and looked all about. There was nothing unusual to be seen. Both windows were open and I went to one and thrust my head out, in order to learn if the odour came from outside. It did not. The air outside the window was fresh and clean.

Then I remembered that when I had left my chambers in the afternoon, the smell had been stronger near the door than anywhere. I ran out to the door. In the pa.s.sage I could smell nothing; but--"

He paused, glancing at his father.

"Before I had stood there thirty seconds it was rising all about me like the fumes from a crater. By G.o.d, sir! I realised then that it was something ... following me!"

Dr. Cairn stood watching him, from the shadows beyond the big table, as he came forward and finished his whisky at a gulp.

"That seemed to work a change in me," he continued rapidly; "I recognised there was something behind this disgusting manifestation, something directing it; and I recognised, too, that the next move was up to me. I went back to my room. The odour was not so p.r.o.nounced, but as I stood by the table, waiting, it increased, and increased, until it almost choked me. My nerves were playing tricks, but I kept a fast hold on myself. I set to work, very methodically, and fumigated the place. Within myself I knew that it could do no good, but I felt that I had to put up some kind of opposition. You understand, sir?"

"Quite," replied Dr. Cairn quietly. "It was an organised attempt to expel the invader, and though of itself it was useless, the mental att.i.tude dictating it was good. Go on."

"The clocks had chimed eleven when I gave up, and I felt physically sick. The air by this time was poisonous, literally poisonous. I dropped into the easy-chair and began to wonder what the end of it would be. Then, in the shadowy parts of the room, outside the circle of light cast by the lamp, I detected--darker patches. For awhile I tried to believe that they were imaginary, but when I saw one move along the bookcase, glide down its side, and come across the carpet, towards me, I knew that they were not. Before heaven, sir"--his voice shook--"either I am mad, or to-night my room was filled with things that _crawled_! They were everywhere; on the floor, on the walls, even on the ceiling above me! Where the light was I couldn't detect them, but the shadows were alive, alive with things--the size of my two hands; and in the growing stillness--"

His voice had become husky. Dr. Cairn stood still, as a man of stone, watching him.

"In the stillness, very faintly, _they rustled_!"

Silence fell. A car pa.s.sed outside in Half-Moon Street; its throb died away. A clock was chiming the half-hour after midnight. Dr. Cairn spoke:

"Anything else?"

"One other thing, sir. I was gripping the chair arms; I felt that I had to grip something to prevent myself from slipping into madness. My left hand--" he glanced at it with a sort of repugnance--"something hairy--and indescribably loathsome--touched it; just brushed against it. But it was too much. I'm ashamed to tell you, sir; I screamed, screamed like any hysterical girl, and for the second time, ran! I ran from my own rooms, grabbed a hat and coat; and left my dressing gown on the floor!"

He turned, leaning both elbows on the mantel-piece, and buried his face in his hands.

"Have another drink," said Dr. Cairn. "You called on Antony Ferrara to-day, didn't you? How did he receive you?"

"That brings me to something else I wanted to tell you," continued Robert, squirting soda-water into his gla.s.s. "Myra--goes there."

"Where--to his chambers?"

"Yes."

Dr. Cairn began to pace the room again.

"I am not surprised," he admitted; "she has always been taught to regard him in the light of a brother. But nevertheless we must put a stop to it. How did you learn this?"

Robert Cairn gave him an account of the morning's incidents, describing Ferrara's chambers with a minute exactness which revealed how deep, how indelible an impression their strangeness had made upon his mind.

"There is one thing," he concluded, "against which I am always coming up, I puzzled over it at Oxford, and others did, too; I came against it to-day. Who _is_ Antony Ferrara? Where did Sir Michael find him?

What kind of woman bore such a son?"

"Stop boy!" cried Dr. Cairn.

Robert started, looking at his father across the table.

"You are already in danger, Rob. I won't disguise that fact from you.

Myra Duquesne is no relation of Ferrara's; therefore, since she inherits half of Sir Michael's fortune, a certain course must have suggested itself to Antony. You, patently, are an obstacle! That's bad enough, boy; let us deal with it before we look for further trouble."

"He took up a blackened briar from the table and began to load it.

"Regarding your next move," he continued slowly, "there can be no question. You must return to your chambers!"

"What!"

"There can be no question, Rob. A kind of attack has been made upon you which only _you_ can repel. If you desert your chambers, it will be repeated here. At present it is evidently localised. There are laws governing these things; laws as immutable as any other laws in Nature.

One of them is this: the powers of darkness (to employ a conventional and significant phrase) cannot triumph over the powers of Will. Below the G.o.dhead, Will is the supreme force of the Universe. _Resist_! You _must_ resist, or you are lost!"

"What do you mean, sir?"

"I mean that destruction of mind, and of something more than mind, threatens you. If you retreat you are lost. Go back to your rooms.

_Seek_ your foe; strive to haul him into the light and crush him! The phenomena at your rooms belong to one of two varieties; at present it seems impossible to cla.s.sify them more closely. Both are dangerous, though in different ways. I suspect, however, that a purely mental effort will be sufficient to disperse these nauseous shadow-things.

Probably you will not be troubled again to-night, but whenever the phenomena return, take off your coat to them! You require no better companion than the one you had:--Mark Twain! Treat your visitors as one might imagine he would have treated them; as a very poor joke! But whenever it begins again, ring me up. Don't hesitate, whatever the hour. I shall be at the hospital all day, but from seven onward I shall be here and shall make a point of remaining. Give me a call when you return, now, and if there is no earlier occasion, another in the morning. Then rely upon my active co-operation throughout the following night."

"Active, sir?"

"I said active, Rob. The next repet.i.tion of these manifestations shall be the last. Good-night. Remember, you have only to lift the receiver to know that you are not alone in your fight."

Robert Cairn took a second cigar, lighted it, finished his whisky, and squared his shoulders.

"Good-night, sir," he said. "I shan't run away a third time!"

When the door had closed upon his exit, Dr. Cairn resumed his restless pacing up and down the library. He had given Roman counsel, for he had sent his son out to face, alone, a real and dreadful danger. Only thus could he hope to save him, but nevertheless it had been hard. The next fight would be a fight to the finish, for Robert had said, "I shan't run away a third time;" and he was a man of his word.

As Dr. Cairn had declared, the manifestations belonged to one of two varieties. According to the most ancient science in the world, the science by which the Egyptians, and perhaps even earlier peoples, ordered their lives, we share this, our plane of existence, with certain other creatures, often called Elementals. Mercifully, these fearsome ent.i.ties are invisible to our normal sight, just as the finer tones of music are inaudible to our normal powers of hearing.

Victims of delirium tremens, opium smokers, and other debauchees, artificially open that finer, latent power of vision; and the horrors which surround them are not imaginary but are Elementals attracted to the victim by his peculiar excesses.

The crawling things, then, which reeked abominably might be Elementals (so Dr. Cairn reasoned) superimposed upon Robert Cairn's consciousness by a directing, malignant intelligence. On the other hand they might be mere glamours--or thought-forms--thrust upon him by the same wizard mind; emanations from an evil, powerful will.

His reflections were interrupted by the ringing of the 'phone bell. He took up the receiver.

"Hullo!"

"That you, sir? All's clear here, now. I'm turning in."

"Right. Good-night, Rob. Ring me in the morning."

"Good-night, sir."

Dr. Cairn refilled his charred briar, and, taking from a drawer in the writing table a thick MS., sat down and began to study the closely-written pages. The paper was in the cramped handwriting of the late Sir Michael Ferrara, his travelling companion through many strange adventures; and the sun had been flooding the library with dimmed golden light for several hours, and a bustle below stairs acclaiming an awakened household, ere the doctor's studies were interrupted. Again, it was the 'phone bell. He rose, switched off the reading-lamp, and lifted the instrument.

"That you, Rob?"

"Yes, sir. All's well, thank G.o.d! Can I breakfast with you?"