five
o'clock
He forgot to glance at the vast solitude of the Roman suburbs before him , and so deep was his reverie that he almost passed unheeded the object of his search . 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 .