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Theil's family owned a homestead on the Island for many years, when the Fog was in remission, until a severe radiation storm destroyed the settlement. Theil alone survived due to her immunity to the radiation and began wandering the Island.
Eventually, she came across Atom's Spring and drank from it, giving her a vision of the storm that had destroyed her home. After what felt like days, she awoke to find herself in the arms of Grand Zealot Brian Richter, who took her to the Nucleus and brought her into the Children of Atom.
By the time of the Sole Survivor's arrival at the Nucleus, Theil had become Richter's second-in-command, and therefore is responsible for the training of all lesser zealots in their mission to secure the Nucleus and the Children from whatever threats might arise. She subsequently aids in the Survivor's search for the exiled heretic Gwyneth.
Interactions with the player characterEdit
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