It was a vault low and damp, and the waters of the river washed its outer wall, for I could hear their murmuring in the silence. Perhaps the place may have measured ten paces in length by eight broad. For the rest its roof was supported by massive columns, and on one side there was a second door that led to a prison cell. At the further end of this gloomy den, that was dimly lighted by torches and lamps, two men with hooded heads, and draped in coarse black gowns, were at work, silently mixing lime that sent up a hot steam upon the stagnant air. By their sides were squares of dressed stone ranged neatly against the end of the vault, and before them was a niche cut in the thickness of the wall itself, shaped like a large coffin set upon its smaller end. In front of this niche was placed a massive chair of chestnut wood. I noticed also that two other such coffin-shaped niches had been cut in this same wall, and filled in with similar blocks of whitish stone. On the face of each was a date graved in deep letters. One had been sealed up some thirty years before, and one hard upon a hundred.

These two men were the only occupants of the vault when we entered it, but presently a sound of soft and solemn singing stole down the second passage. Then the door was opened, the mason monks ceased labouring at the heap of lime, and the sound of singing grew louder so that I could catch the refrain. It was that of a Latin hymn for the dying. Next through the open door came the choir, eight veiled nuns walking two by two, and ranging themselves on either side of the vault they ceased their singing. After them followed the doomed woman, guarded by two more nuns, and last of all a priest bearing a crucifix. This man wore a black robe, and his thin half-frenzied face was uncovered. All these and other things I noticed and remembered, yet at the time it seemed to me that I saw nothing except the figure of the victim. I knew her again, although I had seen her but once in the moonlight. She was changed indeed, her lovely face was fuller and the great tormented eyes shone like stars against its waxen pallor, relieved by the carmine of her lips alone. Still it was the same face that some eight months before I had seen lifted in entreaty to her false lover. Now her tall shape was wrapped about with grave clothes over which her black hair streamed, and in her arms she bore a sleeping babe that from time to time she pressed convulsively to her breast.

On the threshold of her tomb Isabella de Siguenza paused and looked round wildly as though for help, scanning each of the silent watchers to find a friend among them. Then her eye fell upon the niche and the heap of smoking lime and the men who guarded it, and she shuddered and would have fallen had not those who attended her led her to the chair and placed her in it—a living corpse.

Now the dreadful rites began. The Dominican father stood before her and recited her offence, and the sentence that had been passed upon her, which doomed her, “to be left alone with God and the child of your sin, that He may deal with you as He sees fit.“[[3]] To all of this she seemed to pay no heed, nor to the exhortation that followed. At length he ceased with a sigh, and turning to me said:

“Draw near to this sinner, brother, and speak with her before it is too late.”

[3] Lest such cruelty should seem impossible and unprecedented, the writer may mention that in the museum of the city of Mexico, he has seen the desiccated body of a young woman, which was found immured in the walls of a religious building. With it is the body of an infant. Although the exact cause of her execution remains a matter of conjecture, there can be no doubt as to the manner of her death, for in addition to other evidences, the marks of the rope with which her limbs were bound in life are still distinctly visible. Such in those days were the mercies of religion!

Then he bade all present gather themselves at the far end of the vault that our talk might not be overheard, and they did so without wonder, thinking doubtless that I was a monk sent to confess the doomed woman.

So I drew near with a beating heart, and bending over her I spoke in her ear.

“Listen to me, Isabella de Siguenza!” I said; and as I uttered the name she started wildly. “Where is that de Garcia who deceived and deserted you?”

“How have you learnt his true name?” she answered. “Not even torture would have wrung it from me as you know.”