"Your bitterness against Henry Dunbar is very painful to me, my dear Joseph; yet I cannot but feel that your hatred against my employer's son is only natural. I know that he was the first cause of your ruin; and that, but for him, your lot in life might have been very different. Try to forgive him; try to forget him, even if you cannot forgive. Do not talk of revenge. The revelation of that secret which you hold respecting the forged bills would bring disgrace not only upon him, but upon his father and his uncle. They are both good and honourable men, and I think that shame would kill them. Remember this, and keep the secret of that painful story."
Arthur Lovell's face grew terribly grave as he read these lines. He had heard the story of the forgery hinted at, but he had never heard its details. He had looked upon it as a cruel scandal, which had perhaps arisen out of some trifling error, some unpaid debt of honour; some foolish gambling transaction in the early youth of Henry Dunbar.
But here, in the handwriting of the dead clerk, here was the evidence of that old story. Those few lines in Sampson Wilmot's letter suggested a motive.
The young lawyer dropped into a chair, and sat for some minutes silently poring over the clerk's letter. He did not like Henry Dunbar. His generous young heart, which had yearned towards Laura's father, had sunk in his breast with a dull, chill feeling of disappointment, at his first meeting with the rich man.
Still, after carefully sifting the evidence of the coroner's inquest, he had come to the conclusion that Henry Dunbar was innocent of Joseph Wilmot's death. He had carefully weighed every scrap of evidence against the Anglo-Indian; and had deliberately arrived at this conclusion.
But now he looked at everything in a new light. The clerk's letter suggested a motive, perhaps an adequate motive. The two men had gone down together into that silent grove, the servant had threatened his patron, they had quarrelled, and—
No! the murder could scarcely have happened in this way. The assassin had been armed with the cruel rope, and had crept stealthily behind his victim. It was not a common murder; the rope and the slip-knot, the treacherous running noose, hinted darkly at Oriental experiences: somewhat in this fashion might a murderous Thug have assailed his unconscious victim.
But then, on the other hand, there was one circumstance that always remained in Henry Dunbar's favour—that circumstance was the robbery of the dead man's clothes. The Anglo-Indian might very well have rifled the pocket-book, and left it empty upon the scene of the murder, in order to throw the officers of justice upon a wrong scent. That would have been only the work of a few moments.
But was it probable—was it even possible—that the murderer would have lingered in broad daylight, with every chance against him, long enough to strip off the garments of his victim, in order still more effectually to hoodwink suspicion? Was it not a great deal more likely that Joseph Wilmot had spent the afternoon drinking in the tap-room of some roadside public-house, and had rambled back into the grove after dark, to meet his death at the hands of some every-day assassin, bent only upon plunder?
All these thoughts passed through Arthur Lovell's mind as he sat with Sampson's faded letter in his hands. Margaret Wilmot watched him with eager, scrutinizing eyes. She saw doubt, perplexity, horror, indecision, all struggling in his handsome face.