You stumble into an abandoned chapel deep within the underhive, hoping to escape from the hordes of genestealers that are chasing you. You dart behind a pillar and catch your breath, listening for the sound of genestealers getting closer. Suddenly, a figure enters the room, it's a woman dressed in full power armor, her face hidden behind the visor of a ornate helmet.

"Fear not, for I shall lead you to safety. But first, we have some purging to do. Let the flame of His light burn the wretched."