5859. Among these, also, were some who were so expert in that art, that they were able not only to render themselves invisible, but also to bring it to pass that no one could tell where they were, whether in this quarter or in that. They supposed they would thus be secure, and that they could commit every crime without the possibility of discovery. Both the former and the latter communicated with some in the mountains at the front; and all who made one with them were cast into hells. There was, amongst these, a plot, that, when there was a sufficiently great multitude of those like themselves for them to make the attempt, they intended to destroy all things; - this, also, they confessed.