He seemed to see a person holding a torch moving forward in the darkness... Those followers were like burning torches, silently but radiating light and heat, delivering the saints here.
The church's people entered the dungeon through the Door of Oblivion, maintaining a strong core during that time thanks to the followers' sacrifices.
Moreover, the dungeon then did not have as many bizarre Flesh Monsters as now, and even if there were, they found it hard to resist such powerful beings.
They cleared one level, then camped here to study how to break the ritual.
However, don't assume the church's people only engage in prayer; they have stronger channels to acquire Extraordinary information than any Supernatural Organization, with deeper accumulation, and notably have saints among them.
In their research on the dungeon, they obviously discovered the Ancestor's ritual and devised a plan to disrupt it.
