Karen is a character in Fable III.
Karen is a villager of the City of Aurora, the capital of the desert continent of Aurora. She offers the quest The Prophetic Hermit, but only after the Hero of Brightwall has defeated the Crawler and saved Albion in the quest Do the Ends Justify the Means? She has a strange boon to ask of the Hero-she wants the Hero to take a brain in a jar out to a hermit living in the Veiled Path, promising that the hermit will grant the Hero a prediction of the future.
Humourously, if the Hero delivers the jar to the hermit, they quickly discover that the hermit is simply making "predictions" on events that have already occurred. However, one insight of note is that Hobson will call for one more eventful meeting in the throne room.