He looked round the second vault, in which he now found himself, but no person appeared; he examined the place, and particularly the walls, without discovering any aperture, either of door or window, by which the figure could have quitted the chamber; a strongly-grated casement, placed near the roof, was all that admitted air, and probably light. Vivaldi was astonished! "Have you seen any thing pass?" said he to Paulo.

"Nothing, Maestro," replied the servant.

"This is almost incredible," exclaimed Vivaldi; "'tis certain, this form can be nothing human!"

"If so, Signor," observed Paulo, "why should it fear us? as surely it does; or why should it have fled?"

"That is not so certain," rejoined Vivaldi; "it may have fled only to lead us into evil. But bring hither the torch; here is something in the wall which I would examine."

Paulo obeyed. It was merely a ruggedness in the stones, not the partition of a door, that had excited his curiosity. "This is inexplicable!" exclaimed Vivaldi, after a long pause. "What motive could any human being have for thus tormenting me."

"Or any being superhuman, either, my Signor?" said Paulo.

"I am warned of evils that await me," continued Vivaldi, musing; "of events that are regularly fulfilled; the being who warns me, crosses my path perpetually, yet, with the cunning of a demon, as constantly eludes my grasp, and baffles my pursuit! It is incomprehensible, by what means he glides thus away from my eye, and fades, as if into air, at my approach! He is repeatedly in my presence, yet is never to be found!"

"It is most true, Signor," said Paulo, "that he is never to be found, and therefore let me entreat you to give up the pursuit. This place is enough to make one believe in the horrors of purgatory! Let us go, Signor."

"What but spirit could have quitted this vault so mysteriously," continued Vivaldi, not attending to Paulo; "what but spirit!"——