O Daughter of Babylon

O Daughter of Babylon is an achievement/trophy and challenge in the Fallout: New Vegas add-on Honest Hearts. It is obtained after completing Gathering Storms and siding with Joshua Graham.

Challenge requirements
The Courier must complete the quest Crush the White Legs.

Effects
Grants 100 XP and the O Daughter of Babylon achievement/trophy upon completion.

Behind the scenes
This achievement/trophy references Psalm 137:8 of the Bible.