I cannot set down the feelings with which I listened to this tale of horror, for words could not carry them. I stood aghast seeking an answer, and a dreadful thought entered my mind.
“Is this woman named Isabella de Siguenza?” I asked.
“That name was hers in the world,” she answered, “though how you know it I cannot guess.”
“We know many things in this house, mother. Say now, can this Isabella be saved by money or by interest?”
“It is impossible; her sentence has been confirmed by the Tribunal of Mercy. She must die and within two hours. Will you not give the poison?”
“I cannot give it unless I know its purpose, mother. This may be a barren tale, and the medicine might be used in such a fashion that I should fall beneath the law. At one price only can I give it, and it is that I am there to see it used.”
She thought a while and answered: “It may be done, for as it chances the wording of my absolution will cover it. But you must come cowled as a priest, that those who carry out the sentence may know nothing. Still others will know and I warn you that should you speak of the matter you yourself will meet with misfortune. The Church avenges itself on those who betray its secrets, señor.”
“As one day its secrets will avenge themselves upon the Church,” I answered bitterly. “And now let me seek a fitting drug—one that is swift, yet not too swift, lest your hounds should see themselves baffled of the prey before all their devilry is done. Here is something that will do the work,” and I held up a phial that I drew from a case of such medicines. “Come, veil yourself, mother, and let us be gone upon this ‘errand of mercy.’”
She obeyed, and presently we left the house and walked away swiftly through the crowded streets till we came to the ancient part of the city along the river’s edge. Here the woman led me to a wharf where a boat was in waiting for her. We entered it, and were rowed for a mile or more up the stream till the boat halted at a landing-place beneath a high wall. Leaving it, we came to a door in the wall on which my companion knocked thrice. Presently a shutter in the woodwork was drawn, and a white face peeped through the grating and spoke. My companion answered in a low voice, and after some delay the door was opened, and I found myself in a large walled garden planted with orange trees. Then the abbess spoke to me.
“I have led you to our house,” she said. “If you know where you are, and what its name may be, for your own sake I pray you forget it when you leave these doors.”