The Guardian Spirit roams the halls of the Mausoleum, doing his best to protect the sanctity of his brothers' and sisters' eternal rest from mortals who would intrude.
The Guardian Spirit immediately confronts the Nameless One, telling him to leave. Very angry, he says he will not abide another intruder in the Mausoleum. When pressed on this point, he reveals that there is another intruder enslaving his brothers and sisters for evil purposes, and he will accept TNO's offer to help. Alternatively, the spirit can be killed for 1000 XP, which is less than what completing the quest grants.
After defeating the intruder, Strahan Runeshadow, TNO can return to the spirit for a 2000 XP reward.