He gave a quick start. “What, Maisie?” he exclaimed.

I shook my head. “No, no; that is not the name,” I replied.

He hesitated a moment. “But there IS no other,” he hazarded cautiously at last. “I knew the family.”

“I am not sure of it,” I went on. “I have merely my suspicions. I am in love with a girl, and something about her makes me think she is probably a Yorke-Bannerman.”

“But, my dear Hubert, if that is so,” the great lawyer went on, waving me off with one fat hand, “it must be at once apparent to you that I am the last person on earth to whom you ought to apply for information. Remember my oath. The practice of our clan: the seal of secrecy!”

I was frank once more. “I do not know whether the lady I mean is or is not Yorke-Bannerman's daughter,” I persisted. “She may be, and she may not. She gives another name—that's certain. But whether she is or isn't, one thing I know—I mean to marry her. I believe in her; I trust her. I only seek to gain this information now because I don't know where she is—and I want to track her.”

He crossed his big hands with an air of Christian resignation, and looked up at the panels of the coffered ceiling. “In that,” he answered, “I may honestly say, I can't help you. Humbug apart, I have not known Mrs. Yorke-Bannerman's address—or Maisie's either—ever since my poor friend's death. Prudent woman, Mrs. Yorke-Bannerman! She went away, I believe, to somewhere in North Wales, and afterwards to Brittany. But she probably changed her name; and—she did not confide in me.”

I went on to ask him a few questions about the case, premising that I did so in the most friendly spirit. “Oh, I can only tell you what is publicly known,” he answered, beaming, with the usual professional pretence of the most sphinx-like reticence. “But the plain facts, as universally admitted, were these. I break no confidence. Yorke-Bannerman had a rich uncle from whom he had expectations—a certain Admiral Scott Prideaux. This uncle had lately made a will in Yorke-Bannerman's favour; but he was a cantankerous old chap—naval, you know autocratic—crusty—given to changing his mind with each change of the wind, and easily offended by his relations—the sort of cheerful old party who makes a new will once every month, disinheriting the nephew he last dined with. Well, one day the Admiral was taken ill, at his own house, and Yorke-Bannerman attended him. OUR contention was—I speak now as my old friend's counsel—that Scott Prideaux, getting as tired of life as we were all tired of him, and weary of this recurrent worry of will-making, determined at last to clear out for good from a world where he was so little appreciated, and, therefore, tried to poison himself.”

“With aconitine?” I suggested, eagerly.

“Unfortunately, yes; he made use of aconitine for that otherwise laudable purpose. Now, as ill luck would have it”—Mayfield's wrinkles deepened—“Yorke-Bannerman and Sebastian, then two rising doctors engaged in physiological researches together, had just been occupied in experimenting upon this very drug—testing the use of aconitine. Indeed, you will no doubt remember”—he crossed his fat hands again comfortably—“it was these precise researches on a then little-known poison that first brought Sebastian prominently before the public. What was the consequence?” His smooth, persuasive voice flowed on as if I were a concentrated jury. “The Admiral grew rapidly worse, and insisted upon calling in a second opinion. No doubt he didn't like the aconitine when it came to the pinch—for it DOES pinch, I can tell you—and repented him of his evil. Yorke-Bannerman suggested Sebastian as the second opinion; the uncle acquiesced; Sebastian was called in, and, of course, being fresh from his researches, immediately recognised the symptoms of aconitine poisoning.”