Reclaiming A Birthright

You wish to claim the staff for one of your house? This makes things much more interesting! I would be more than happy to give you this worthless staff, but you must serve House Arkaneth in a critical task before I can grant such a reward. Unlike House Uthorin, who seems to desire useless trinkets, House Arkaneth wishes to acquire items of true power. We know of one held by an especially renowned lorekeeper who presently aids in the defense of the Menhir Stone. My bargain is simple, even for one of your limited capacity: claim the Alantir Gem from the lorekeeper, and you can have this impotent wooden stick as a reward.

Travel south to Whitefire Tor, and find Lasendis Lightcaller. Defeat her, and discover where she has hidden the artifact Harogath is willing to trade Menista's birthright for.