And now, as to the remains in the rock of the primitive Marmoutier. The grottoes of S. Gatianus and of the disciples of S. Martin have been cleared out. There is a little arcade of three round-headed unadorned arches cut in the cliff that served as a cloister, and there is the old baptistry where Martin admitted his converts into the Christian Church, sunk in the rock for adult and complete submersion, and the niches in the wall for the sacred oils. Adjoining is the cave in which the neophyte unclothed and afterwards reclothed himself. There are graves sunk in the rock, where some of his disciples were laid, and there is the chapel partly in the rock and partly rebuilt, dedicated later by Gregory of Tours to the Seven Sleepers of Ephesus, but of which in after times a different story was told--namely that seven brothers who had been devoted disciples of Martin prayed him when he was dying that they might speedily follow, and on the anniversary of his death they all seven fell asleep. There is another cave that escaped destruction at the Revolution, though opening out of the transept of the church. It is that of the Penitence of Brice. Brice had been adopted as a child by Martin, and brought up by him to be a monk. But Brice had no liking for the religious life, and was very disrespectful to his master. One day a sick man came to see Martin and asked of Brice where the saint was. "The fool is yonder," answered he, "staring at the sky like an idiot." One day Martin rebuked Brice for buying horses and slaves at a high price, and even providing himself with beautiful young girls. Brice was furious, and said. "I am a better Christian than you. I have had an ecclesiastical education from my youth, and you were bred up amidst the license of a camp."