Not long after, in the year 285, Carinus was defeated and slain in Illyricum by Dioclesian, who, the year following, made Maximian his colleague in the empire. The persecution was still carried on by the magistrates, in the same manner as under Carinus, without any new edicts. Dioclesian, admiring the courage and virtue of St. Sebastian, who concealed his religion, would fain have him near his person, and created him captain of a company of the pretorian guards, which was a considerable dignity. When Dioclesian went into the East, Maximian, who remained in the West, honored our saint with the same distinction and respect. Chromatius, with the emperor's consent, retired into the country in Campania, taking many new converts along with him. It was a contest of zeal, out of a mutual desire of martyrdom, between St. Sebastian and the priest Polycarp, which of them should accompany this troop, to complete their instruction, and which should remain in the city, to encourage and assist the martyrs, which latter was the more dangerous province. St. Austin wished to see such contests of charity among the ministers of the church.[2] Pope Caius, who was appealed to, judged it most proper that Sebastian should stay in Rome, as a defender of the church. In the year 286, the persecution growing hot, the pope and others concealed themselves in the imperial palace, as a place of the greatest safety, in the apartments of one Castulus, a Christian officer of the court. St. Zoe was first apprehended, praying at St. Peter's tomb on the feast of the apostles. She was stifled with smoke, being hung by the heels over a fire. Tranquillinus, ashamed to be less courageous than a woman, went to pray at the tomb of St. Paul, and was seized by the populace, and stoned to death. Nicostratus, Claudius, Castorius, and Victorinus were taken, and after being thrice tortured, were thrown into the sea. Tiburtius, betrayed by a false brother, was beheaded. Castulus, accused by the same wretch, was thrice put on the rack, and afterwards buried alive. Marcus and Marcellianus were nailed by the feet to a post, and having remained in that torment twenty-four hours, were shot to death with arrows.