One of the mages at the doors answers for her. "This thing is, obviously, a magical creation. A sort of vampire; feeds off of the energy of living creatures," he explained. "Both drawing out the physical energy, weakening the body, and, err, emotional energy, you might say. Lust happens to be a rather strong emotion, and one it seems to have evolved to specialize in. It also seems to have magic that supports that, with short ranged teleportation and mind-influencing. Fortunately, this one's nearly exhausted all of its resources... but it's still dangerous as hell."