"I confess the task is unpleasant. I am a soldier, and do not like to hunt out old men and weak children for the executioner; yet, as a soldier, I must obey. Tell me something about these Catacombs."
"The Catacombs? It is a subterranean district that extends to unknown bounds underneath the city. The Christians fly to the catacombs whenever there is danger, and they also are in the habit of burying their dead there. Once there, they are beyond the reach of the utmost power of the state."
"Who made the Catacombs?"
"No one knows exactly. They have existed for ages. I believe that they were excavated for the sake of getting building sand for cement. At present all our cement comes from there, and you may see workmen bringing it into the city along any of the great roads. They have to go far away for it now, for in the course of ages they have excavated so much beneath us that this city now rests upon a foundation like a honeycomb."
"Is there any regular entrance?"
"There are innumerable entrances. That is the difficulty. If there were but few, then we might catch the fugitives. But we cannot tell from which direction to advance upon them."
"Is any district suspected?"
"Yes. About two miles down the Appian Way, near the tomb of Caecilia Metella, the large round tower, you know, bodies have frequently been discovered. It is conjectured that these are the bodies of the Christians which have been obtained from the amphitheater and carried away for burial. On the approach of the guards, the Christians have dropped the bodies and fled. But, after all, this gives no assistance, for after you enter the Catacombs you are no nearer your aim than before. No human being can penetrate that infinite labyrinth without assistance from those who live there."
"Who live there?"
"The fossors, who still excavate sand for the builders. They are nearly all Christians, and are always at work cutting out graves for the dead of the Christians. These men have lived there all their lives, and are not only familiar with the passages, but they have a kind of instinct to guide them."