‘Certainly. I never wrote one of them. I have never written a letter to Harry since he was married. I have never had any occasion to do so.’

The widow turned towards me with an ashen-grey face, which it was pitiful to behold.

‘Whose are they, then?’ she whispered, hoarsely.

‘I do not know, my dear,’ I replied; ‘surely it matters little now. You will be ill if you excite yourself in this manner. Let me conduct you back to your room;’ but before I could do so she had fallen in a fit at my feet. Of course, all then was hurry and confusion, and when I returned to the drawing-room I found Lady Amabel crying in her husband’s arms.

‘Oh, Warden dear,’ she was saying, ‘I shall never forgive myself. This all comes of my wretched flirting. It’s no good your shaking your head; you know I flirt, and so does every one else; but I never meant anything by it, darling, and I thought all the world knew how much I loved you.’

‘Don’t be a goose!’ replied her husband, as he put her gently away from him; ‘but if you think I’m going to let you remain in this house after what that d—d woman—Oh, here is General Wilmer! Well, General, after the very unpleasant manner in which your niece has been entertaining us, you will not be surprised to hear that I shall take my wife away from Durham Hall to-night. When Lady Trevor comes to her senses you will perhaps kindly explain to her the reason of our departure, for nothing under such an insult should have prevented my paying my last respects to the memory of a man who never behaved otherwise than as a gentleman to either of us.’

I apologised for Justina as best I was able, represented that her mind must really have become unhinged by her late trouble, and that she would probably be very sorry for what she had said by-and-by; but I was not surprised that my arguments had no avail in inducing Mr Scott to permit his wife to remain at Durham Hall, and in a few hours they had left the house. When they were gone I took up the letters, which still lay upon the table, and examined them. They were addressed to Sir Harry, written evidently in a woman’s hand, and teemed with expressions of the warmest affection. I was not surprised that the perusal of them had excited poor Justina’s wrathful jealousy. Turning to the signatures, I found that they all concluded with the same words, ‘Your loving and faithful Pet.’ In a moment my mind had flown back to the dying speech of poor Sir Harry, and had absolved Lady Amabel Scott from all my former suspicions. She was not the woman who had penned these letters; she had not been in the last thoughts of her cousin. Who, then, had been? That was a mystery on which Death had set his seal, perhaps for ever. Before I retired to rest that night I inquired for my poor niece, and heard that she had Mrs Benson with her. I was glad of that: the women were fond of one another, and Justina, I felt, would pour all her griefs into the sympathising ear of the professor’s wife, and derive comfort from weeping over them afresh with her. But after I had got into bed I remembered that I had left the letters lying on the drawing-room table, where they would be liable to be inspected by the servants, and blow the breath of the family scandal far and wide. It was much past midnight, for I had sat up late, and all the household, if not asleep, had retired to their own apartments; and so, wrapping a dressing-gown about me, and thrusting my feet into slippers, I lighted my candle, and descended noiselessly to the lower apartments. But when I reached the drawing-room the letters were gone: neither on the table nor the ottoman nor the floor were they to be seen; and so, vexed at my own carelessness, but concluding that the servants, when extinguishing the lights, had perceived and put the papers away in some place of safety, I prepared to return to my own room.

The bedrooms at Durham Hall were situated on either side of a corridor, and fearful of rousing the family or being caught in deshabile, I trod on tiptoe, shading my candle with my hand. It was owing to this circumstance, I suppose, that I had reached the centre of the corridor without causing the least suspicion of my presence; but as I passed by the apartment where the remains of my unfortunate host lay ready for burial, the door suddenly opened and a light appeared upon the threshold. I halted, expecting to see emerge the figure of my widowed niece, but lifting my eyes, to my astonishment I encountered the shrinking, almost terrified, gaze of the professor’s wife. Robed in her night-dress, pallid as the corpse which lay within, her large frightened eyes apparently the only living things about her, she stood staring at me as though she had been entranced. Her brown hair floated over her shoulders, her feet were bare; one hand held a lighted candle, the other grasped the packet of letters of which I had been in search. So we stood for a moment regarding one another—I taking in these small but important details; she looking as though she implored my mercy and forbearance. And then I drew back with the gesture of respect due to her sex, and, clad in her white dress, she swept past me like a startled spirit and disappeared.

I gained my own room, but it was not to sleep. A thousand incidents, insignificant in themselves, but powerful when welded into one, sprang up in my mind to convince me that Justina and I and everybody had been on a wrong tack, and that in the professor’s wife, the ‘quiet-looking little lady’ with her Quaker-like robes, downcast eyes and modest appearance, in the ‘best friend’ that my niece had ever possessed, I had discovered the writer of those letters, the concealed visitor in Sir Harry’s room, the ‘Pet’ whose name had been the last sound heard to issue from his dying lips. For many hours I lay awake pondering over the best course for me to pursue. I could not bear the thought of undeceiving my poor niece, whose heart had already suffered so much; besides, it seemed like sacrilege to drag to light the secrets of the dead. At the same time I felt that Mrs Benson should receive some hint that her presence in Durham Hall, at that juncture, if desired, was no longer desirable. And the next day, finding she was not likely to accord me an interview, I made the reception of the missing letters a pretext for demanding one. She came to her room door holding them in her hand, and the marks of trouble were so distinct in her face that I had to summon all my courage to go through the task which I considered my duty.

‘You found these in the drawing-room last night?’ I said, as I received them from her.