The edict against the Scriptures
The persecution under Diocletian, beginning in 303, included an edict that ordered Christians to hand over their copies of the Scriptures for destruction, on pain of death. The defining act of the sisters in the tradition is their refusal to surrender these books, which they hid and preserved rather than betray. Their resistance places them among the confessors who suffered specifically for guarding the written word of the Church.
Accounts associated with the Greek tradition relate that, learning of the edict, the sisters withdrew from the city and lived a life of prayer and asceticism on a mountain together with an elder before they were discovered and seized.