One point upon which I was anxious to gain information was as to how long these proceedings had been going on. When did St. James assert his hold over Dr. McCarthy? From neither of them could I learn how long my colleague had been in his present situation. One or two leading questions upon my part were eluded or ignored in a manner so marked that it was easy to see that they were both of them as eager to conceal the point as I was to know it. But at last one evening I had the chance of a chat with Mrs. Carter, the matron – for the Doctor was a widower – and from her I got the information which I wanted. It needed no questioning to get at her knowledge, for she was so full of indignation that she shook with passion as she spoke of it, and raised her hands into the air in the earnestness of her denunciation, as she described the grievances which she had against my colleague.

"It was three years ago, Mr. Weld, that he first darkened this doorstep," she cried. "Three bitter years they have been to me. The school had fifty boys then. Now it has twenty-two. That's what he has done for us in three years. In another three there won't be one. And the Doctor, that angel of patience, you see how he treats him, though he is not fit to lace his boots for him. If it wasn't for the Doctor, you may be sure that I wouldn't stay an hour under the same roof with such a man, and so I told him to his own face, Mr. Weld. If the Doctor would only pack him about his business – but I know that I am saying more than I should!" She stopped herself with an effort, and spoke no more upon the subject. She had remembered that I was almost a stranger in the school, and she feared that she had been indiscreet.

There were one or two very singular points about my colleague. The chief one was that he rarely took any exercise. There was a playing-field within the college grounds, and that was his farthest point. If the boys went out, it was I or Dr. McCarthy who accompanied them. St. James gave as a reason for this that he had injured his knee some years before, and that walking was painful to him. For my own part I put it down to pure laziness upon his part, for he was of an obese, heavy temperament. Twice, however, I saw him from my window stealing out of the grounds late at night, and the second time I watched him return in the grey of the morning and slink in through an open window. These furtive excursions were never alluded to, but they exposed the hollowness of his story about his knee, and they increased the dislike and distrust which I had of the man. His nature seemed to be vicious to the core.

Another point, small but suggestive, was that he hardly ever during the months that I was at Willow Lea House received any letters, and on those few occasions they were obviously tradesmen's bills. I am an early riser, and used every morning to pick my own correspondence out of the bundle upon the hall table. I could judge therefore how few were ever there for Mr. Theophilus St. James. There seemed to me to be something peculiarly ominous in this. What sort of a man could he be who during thirty years of his life had never made a single friend, high or low, who cared to continue to keep in touch with him? And yet the sinister fact remained that the head master not only tolerated, but was even intimate with him. More than once on entering a room I had found them talking confidentially together, and they would walk arm in arm in deep conversation up and down the garden paths. So curious did I become to know what the tie was which bound them, that I found it gradually push out my other interests and become the main purpose of my life. In school and out of school, at meals and at play, I was perpetually engaged in watching Dr. Phelps McCarthy and Mr. Theophilus St. James, and in endeavouring to solve the mystery which surrounded them.

But, unfortunately, my curiosity was a little too open. I had not the art to conceal the suspicions which I felt about the relations which existed between these two men and the nature of the hold which the one appeared to have over the other. It may have been my manner of watching them, it may have been some indiscreet question, but it is certain that I showed too clearly what I felt. One night I was conscious that the eyes of Theophilus St. James were fixed upon me in a surly and menacing stare. I had a foreboding of evil, and I was not surprised when Dr. McCarthy called me next morning into his study.

"I am very sorry, Mr. Weld," said he, "but I am afraid that I shall be compelled to dispense with your services."

"Perhaps you would give me some reason for dismissing me," I answered, for I was conscious of having done my duties to the best of my power, and knew well that only one reason could be given.

"I have no fault to find with you," said he, and the colour came to his cheeks.

"You send me away at the suggestion of my colleague."

His eyes turned away from mine.

"We will not discuss the question, Mr. Weld. It is impossible for me to discuss it. In justice to you, I will give you the strongest recommendation for your next situation. I can say no more. I hope that you will continue your duties here until you have found a place elsewhere."

My whole soul rose against the injustice of it, and yet I had no appeal and no redress. I could only bow and leave the room, with a bitter sense of ill-usage at my heart.

My first instinct was to pack my boxes and leave the house. But the head master had given me permission to remain until I had found another situation. I was sure that St. James desired me to go, and that was a strong reason why I should stay. If my presence annoyed him, I should give him as much of it as I could. I had begun to hate him and to long to have my revenge upon him. If he had a hold over our principal, might not I in turn obtain one over him? It was a sign of weakness that he should be so afraid of my curiosity. He would not resent it so much if he had not something to fear from it. I entered my name once more upon the books of the agents, but meanwhile I continued to fulfil my duties at Willow Lea House, and so it came about that I was present at the dénouement of this singular situation.

During that week – for it was only a week before the crisis came – I was in the habit of going down each evening, after the work of the day was done, to inquire about my new arrangements. One night, it was a cold and windy evening in March, I had just stepped out from the hall door when a strange sight met my eyes. A man was crouching before one of the windows of the house. His knees were bent and his eyes were fixed upon the small line of light between the curtain and the sash. The window threw a square of brightness in front of it, and in the middle of this the dark shadow of this ominous visitor showed clear and hard. It was but for an instant that I saw him, for he glanced up and was off in a moment through the shrubbery. I could hear the patter of his feet as he ran down the road, until it died away in the distance.

It was evidently my duty to turn back and to tell Dr. McCarthy what I had seen. I found him in his study. I had expected him to be disturbed at such an incident, but I was not prepared for the state of panic into which he fell. He leaned back in his chair, white and gasping, like one who has received a mortal blow.

"Which window, Mr. Weld?" he asked, wiping his forehead. "Which window was it?"

"The next to the dining-room – Mr. St. James's window."

"Dear me! Dear me! This is, indeed, unfortunate! A man looking through Mr. St. James's window!" He wrung his hands like a man who is at his wits' end what to do.

"I shall be passing the police-station, sir. Would you wish me to mention the matter?"

"No, no," he cried, suddenly, mastering his extreme agitation; "I have no doubt that it was some poor tramp who intended to beg. I attach no importance to the incident – none at all. Don't let me detain you, Mr. Weld, if you wish to go out."

I left him sitting in his study with reassuring words upon his lips, but with horror upon his face. My heart was heavy for my little employer as I started off once more for town. As I looked back from the gate at the square of light which marked the window of my colleague, I suddenly saw the black outline of Dr. McCarthy's figure passing against the lamp. He had hastened from his study then to tell St. James what he had heard. What was the meaning of it all, this atmosphere of mystery, this inexplicable terror, these confidences between two such dissimilar men? I thought and thought as I walked, but do what I would I could not hit upon any adequate conclusion. I little knew how near I was to the solution of the problem.

It was very late – nearly twelve o'clock – when I returned, and the lights were all out save one in the Doctor's study. The black, gloomy house loomed before me as I walked up the drive, its sombre bulk broken only by the one glimmering point of brightness. I let myself in with my latch-key, and was about to enter my own room when my attention was arrested by a short, sharp cry like that of a man in pain. I stood and listened, my hand upon the handle of my door.

All was silent in the house save for a distant murmur of voices which came, I knew, from the Doctor's room. I stole quietly down the corridor in that direction. The sound resolved itself now into two voices, the rough bullying tones of St. James and the lower tone of the Doctor, the one apparently insisting and the other arguing and pleading. Four thin lines of light in the blackness showed me the door of the Doctor's room, and step by step I drew nearer to it in the darkness. St. James's voice within rose louder and louder, and his words came plainly to my ear.

"I'll have every pound of it. If you won't give it me I'll take it. Do you hear?"

Dr. McCarthy's reply was inaudible, but the angry voice broke in again.

"Leave you destitute! I leave you this little goldmine of a school, and that's enough for one old man, is it not? How am I to set up in Australia without money? Answer me that!"

Again the Doctor said something in a soothing voice, but his answer only roused his companion to a higher pitch of fury.

"Done for me! What have you ever done for me except what you couldn't help doing? It was for your good name, not for my safety, that you cared. But enough cackle! I must get on my way before morning. Will you open your safe or will you not?"

"Oh, James, how can you use me so?" cried a wailing voice, and then there came a sudden little scream of pain. At the sound of that helpless appeal from brutal violence I lost for once that temper upon which I had prided myself. Every bit of manhood in me cried out against any further neutrality. With my walking cane in my hand I rushed into the study. As I did so I was conscious that the hall-door bell was violently ringing.

"You villain!" I cried, "let him go!"

The two men were standing in front of a small safe, which stood against one wall of the Doctor's room. St. James held the old man by the wrist, and he had twisted his arm round in order to force him to produce the key. My little head master, white but resolute, was struggling furiously in the grip of the burly athlete. The bully glared over his shoulder at me with a mixture of fury and terror upon his brutal features. Then, realising that I was alone, he dropped his victim and made for me with a horrible curse.

"You infernal spy!" he cried. "I'll do for you anyhow before I leave."

I am not a very strong man, and I realised that I was helpless if once at close quarters. Twice I cut at him with my stick, but he rushed in at me with a murderous growl, and seized me by the throat with both his muscular hands. I fell backwards and he on the top of me, with a grip which was squeezing the life from me. I was conscious of his malignant yellow-tinged eyes within a few inches of my own, and then with a beating of pulses in my head and a singing in my ears, my senses slipped away from me. But even in that supreme moment I was aware that the door-bell was still violently ringing.

When I came to myself, I was lying upon the sofa in Dr. McCarthy's study, and the Doctor himself was seated beside me. He appeared to be watching me intently and anxiously, for as I opened my eyes and looked about me he gave a great cry of relief. "Thank God!" he cried. "Thank God!"

"Where is he?" I asked, looking round the room. As I did so, I became aware that the furniture was scattered in every direction, and that there were traces of an even more violent struggle than that in which I had been engaged.

The Doctor sank his face between his hands.

"They have him," he groaned. "After these years of trial they have him again. But how thankful I am that he has not for a second time stained his hands in blood."

As the Doctor spoke I became aware that a man in the braided jacket of an inspector of police was standing in the doorway.

"Yes, sir," he remarked, "you have had a pretty narrow escape. If we had not got in when we did, you would not be here to tell the tale. I don't know that I ever saw any one much nearer to the undertaker."

I sat up with my hands to my throbbing head.

"Dr. McCarthy," said I, "this is all a mystery to me. I should be glad if you could explain to me who this man is, and why you have tolerated him so long in your house."

"I owe you an explanation, Mr. Weld – and the more so since you have, in so chivalrous a fashion, almost sacrificed your life in my defence. There is no reason now for secrecy. In a word, Mr. Weld, this unhappy man's real name is James McCarthy, and he is my only son."

"Your son?"

"Alas, yes. What sin have I ever committed that I should have such a punishment? He has made my whole life a misery from the first years of his boyhood. Violent, headstrong, selfish, unprincipled, he has always been the same. At eighteen he was a criminal. At twenty, in a paroxysm of passion, he took the life of a boon companion and was tried for murder. He only just escaped the gallows, and he was condemned to penal servitude. Three years ago he succeeded in escaping, and managed, in face of a thousand obstacles, to reach my house in London. My wife's heart had been broken by his condemnation, and as he had succeeded in getting a suit of ordinary clothes, there was no one here to recognise him. For months he lay concealed in the attics until the first search of the police should be over. Then I gave him employment here, as you have seen, though by his rough and overbearing manners he made my own life miserable, and that of his fellow-masters unbearable. You have been with us for four months, Mr. Weld, but no other master endured him so long. I apologise now for all you have had to submit to, but I ask you what else could I do? For his dead mother's sake I could not let harm come to him as long as it was in my power to fend it off. Only under my roof could he find a refuge – the only spot in all the world – and how could I keep him here without it exciting remark unless I gave him some occupation? I made him English master therefore, and in that capacity I have protected him here for three years. You have no doubt observed that he never during the daytime went beyond the college grounds. You now understand the reason. But when to-night you came to me with your report of a man who was looking through his window, I understood that his retreat was at last discovered. I besought him to fly at once, but he had been drinking, the unhappy fellow, and my words fell upon deaf ears. When at last he made up his mind to go he wished to take from me in his flight every shilling which I possessed. It was your entrance which saved me from him, while the police in turn arrived only just in time to rescue you. I have made myself amenable to the law by harbouring an escaped prisoner, and remain here in the custody of the inspector, but a prison has no terrors for me after what I have endured in this house during the last three years."

"It seems to me, Doctor," said the inspector, "that, if you have broken the law, you have had quite enough punishment already."

"God knows I have!" cried Dr. McCarthy, and sank his haggard face upon his hands.