There was no answer.
"Shall I tell you?"
Still the same obstinate silence.
"My Lady Audley," cried Robert, suddenly, "you are the incendiary. It was you whose murderous hand kindled those flames. It was you who thought by that thrice-horrible deed to rid yourself of me, your enemy and denouncer. What was it to you that other lives might be sacrificed? If by a second massacre of Saint Bartholomew you could have ridded yourself of me you would have sacrificed an army of victims. The day is past for tenderness and mercy. For you I can no longer know pity or compunction. So far as by sparing your shame I can spare others who must suffer by your shame, I will be merciful, but no further. If there were any secret tribunal before which you might be made to answer for your crimes, I would have little scruple in being your accuser, but I would spare that generous and high-born gentleman upon whose noble name your infamy would be reflected."
His voice softened as he made this allusion, and for a moment he broke down, but he recovered himself by an effort and continued:
"No life was lost in the fire of last night. I slept lightly, my lady, for my mind was troubled, as it has been for a long time, by the misery which I knew was lowering upon this house. It was I who discovered the breaking out of the fire in time to give the alarm and to save the servant girl and the poor drunken wretch, who was very much burnt in spite of efforts, and who now lies in a precarious state at his mother's cottage. It was from him and from his wife that I learned who had visited the Castle Inn in the dead of the night. The woman was almost distracted when she saw me, and from her I discovered the particulars of last night. Heaven knows what other secrets of yours she may hold, my lady, or how easily they might be extorted from her if I wanted her aid, which I do not. My path lies very straight before me. I have sworn to bring the murderer of George Talboys to justice, and I will keep my oath. I say that it was by your agency my friend met with his death. If I have wondered sometimes, as it was only natural I should, whether I was not the victim of some horrible hallucination, whether such an alternative was not more probable than that a young and lovely woman should be capable of so foul and treacherous a murder, all wonder is past. After last night's deed of horror, there is no crime you could commit, however vast and unnatural, which could make me wonder. Henceforth you must seem to me no longer a woman, a guilty woman with a heart which in its worst wickedness has yet some latent power to suffer and feel; I look upon you henceforth as the demoniac incarnation of some evil principle. But you shall no longer pollute this place by your presence. Unless you will confess what you are and who you are in the presence of the man you have deceived so long, and accept from him and from me such mercy as we may be inclined to extend to you, I will gather together the witnesses who shall swear to your identity, and at peril of any shame to myself and those I love, I will bring upon you the just and awful punishment of your crime."
The woman rose suddenly and stood before him erect and resolute, with her hair dashed away from her face and her eyes glittering.
"Bring Sir Michael!" she cried; "bring him here, and I will confess anything—everything. What do I care? God knows I have struggled hard enough against you, and fought the battle patiently enough; but you have conquered, Mr. Robert Audley. It is a great triumph, is it not—a wonderful victory? You have used your cool, calculating, frigid, luminous intellect to a noble purpose. You have conquered—a MAD WOMAN!"
"A mad woman!" cried Mr. Audley.
"Yes, a mad woman. When you say that I killed George Talboys, you say the truth. When you say that I murdered him treacherously and foully, you lie. I killed him because I AM MAD! because my intellect is a little way upon the wrong side of that narrow boundary-line between sanity and insanity; because, when George Talboys goaded me, as you have goaded me, and reproached me, and threatened me, my mind, never properly balanced, utterly lost its balance, and I was mad! Bring Sir Michael; and bring him quickly. If he is to be told one thing let him be told everything; let him hear the secret of my life!"