“The circumstances which led up to the death of Admiral Scott Prideaux, and the suspicions which caused the arrest of Doctor Yorke-Bannerman, have never yet been fully explained, although they were by no means so profound that they might not have been unravelled at the time had a man of intellect concentrated his attention upon them. The police, however, were incompetent and the legal advisers of Dr. Bannerman hardly less so, and a woman only has had the wit to see that a gross injustice has been done. The true facts I will now lay before you.”

Mayfield’s broad face had reddened with indignation; but now his curiosity drove out every other emotion, and he leaned forward with the rest of us to hear the old man’s story.

“In the first place, I must tell you that both Dr. Bannerman and myself were engaged at the time in an investigation upon the nature and properties of the vegetable alkaloids, and especially of aconitine. We hoped for the very greatest results from this drug, and we were both equally enthusiastic in our research. Especially, we had reason to believe that it might have a most successful action in the case of a certain rare but deadly disease, into the nature of which I need not enter. Reasoning by analogy, we were convinced that we had a certain cure for this particular ailment.

“Our investigation, however, was somewhat hampered by the fact that the condition in question is rare out of tropical countries, and that in our hospital wards we had not, at that time, any example of it. So serious was this obstacle, that it seemed that we must leave other men more favourably situated to reap the benefit of our work and enjoy the credit of our discovery, but a curious chance gave us exactly what we were in search of, at the instant when we were about to despair. It was Yorke-Bannerman who came to me in my laboratory one day to tell me that he had in his private practice the very condition of which we were in search.

“‘The patient,’ said he, ‘is my uncle, Admiral Scott Prideaux.’

“‘Your uncle!’ I cried, in amazement. ‘But how came he to develop such a condition?’

“‘His last commission in the Navy was spent upon the Malabar Coast, where the disease is endemic. There can be do doubt that it has been latent in his system ever since, and that the irritability of temper and indecision of character, of which his family have so often had to complain, were really among the symptoms of his complaint.’

“I examined the Admiral in consultation with my colleague, and I confirmed his diagnosis. But, to my surprise, Yorke-Bannerman showed the most invincible and reprehensible objection to experiment upon his relative. In vain I assured him that he must place his duty to science high above all other considerations. It was only after great pressure that I could persuade him to add an infinitesimal portion of aconitine to his prescriptions. The drug was a deadly one, he said, and the toxic dose was still to be determined. He could not push it in the case of a relative who trusted himself to his care. I tried to shake him in what I regarded as his absurd squeamishness—but in vain.

“But I had another resource. Bannerman’s prescriptions were made up by a fellow named Barclay, who had been dispenser at Nathaniel’s and afterwards set up as a chemist in Sackville Street. This man was absolutely in my power. I had discovered him at Nathaniel’s in dishonest practices, and I held evidence which would have sent him to gaol. I held this over him now, and I made him, unknown to Bannerman, increase the doses of aconitine in the medicine until they were sufficient for my experimental purposes. I will not enter into figures, but suffice it that Bannerman was giving more than ten times what he imagined.

“You know the sequel. I was called in, and suddenly found that I had Bannerman in my power. There had been a very keen rivalry between us in science. He was the only man in England whose career might impinge upon mine. I had this supreme chance of putting him out of my way. He could not deny that he had been giving his uncle aconitine. I could prove that his uncle had died of aconitine. He could not himself account for the facts—he was absolutely in my power. I did not wish him to be condemned, Maisie. I only hoped that he would leave the court discredited and ruined. I give you my word that my evidence would have saved him from the scaffold.”

Hilda was listening, with a set, white face.

“Proceed!” said she, and held out the brandy once more.

“I did not give the Admiral any more aconitine after I had taken over the case. But what was already in his system was enough. It was evident that we had seriously under-estimated the lethal dose. As to your father, Maisie, you have done me an injustice. You have always thought that I killed him.”

“Proceed!” said she.

“I speak now from the brink of the grave, and I tell you that I did not. His heart was always weak, and it broke down under the strain. Indirectly I was the cause—I do not seek to excuse anything; but it was the sorrow and the shame that killed him. As to Barclay, the chemist, that is another matter. I will not deny that I was concerned in that mysterious disappearance, which was a seven days’ wonder in the Press. I could not permit my scientific calm to be interrupted by the blackmailing visits of so insignificant a person. And then after many years you came, Maisie. You also got between me and that work which was life to me. You also showed that you would rake up this old matter and bring dishonour upon a name which has stood for something in science. You also—but you will forgive me. I have held on to life for your sake as an atonement for my sins. Now, I go! Cumberledge—your notebook. Subjective sensations, swimming in the head, light flashes before the eyes, soothing torpor, some touch of coldness, constriction of the temples, humming in the ears, a sense of sinking—sinking—sinking!”

It was an hour later, and Hilda and I were alone in the chamber of death. As Sebastian lay there, a marble figure, with his keen eyes closed and his pinched, thin face whiter and serener than ever, I could not help gazing at him with some pangs of recollection. I could not avoid recalling the time when his very name was to me a word of power, and when the thought of him roused on my cheek a red flush of enthusiasm. As I looked I murmured two lines from Browning’s Grammarian’s Funeral:

This is our Master, famous, calm, and dead, Borne on our shoulders.

Hilda Wade, standing beside me, with an awestruck air, added a stanza from the same great poem:

Lofty designs must close in like effects: Loftily lying, Leave him—still loftier than the world suspects, Living and dying.

I gazed at her with admiration. “And it is YOU, Hilda, who pay him this generous tribute!” I cried, “YOU, of all women!”

“Yes, it is I,” she answered. “He was a great man, after all, Hubert. Not good, but great. And greatness by itself extorts our unwilling homage.”

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