Another disappointment awaited him at the first point in his voyage of exploration.
The monk who came at his ring to open the door of the inclosure contiguous to St.Calixtus, informed him that he of whom he was in search had left half an hour before.
"You will find him at the Basilica of Saint Neree and Saint Achilles," added the Trappist; "it is the fete of those two saints, and at five o'clock there will be a procession in their catacombs....

It is a fifteen minutes' ride from here, near the tower Marancia, on the Via Ardeatina." "Shall I miss him a third time ?" thought Dorsenne, alighting from the carriage finally, and proceeding on foot to the opening which leads to the subterranean Necropolis dedicated to the two saints who were the eunuchs of Domitilla, the niece of Emperor Vespasian.

A few ruins and a dilapidated house alone mark the spot where once stood the pious Princess's magnificent villa.

The gate was open, and, meeting no one who could direct him, the young man took several steps in the subterranean passage.

He perceived that the long gallery was lighted.