From the Prologue of Ochrid
In the time of Emperor Hadrian (117-138), a certain pagan named Catallus purchased as slaves Hesperus, his wife Zoe, and their sons Cyriacus and Theodulus. As these were convinced Christians, they would not taste anything from the idolatrous sacrifices; instead, whatever was given to them they threw to the dogs, while they themselves went hungry and endured suffering. When Catallus learned of this, he grew exceedingly angry and began to torture all his slaves grievously. First he tormented the children, but the children remained unwavering in their faith, and even more, they demanded heavier torments from their torturer. At last all four were cast into a fiery furnace, where, after a prayer of thanksgiving, they surrendered their spirits to the Lord. Their bodies remained whole and unscorched by the fire.
