The Grateful Dead

To save others a lot of running around Exodar itself like I did.
The graveyard is just south of Azure Watch.

A key point being missed by many people in-game today:

Buy an [item=46718] and then use it in order to see the quest NPC.

Some insight about the Grateful Dead:

Grateful Dead in Folklore:

Grateful dead (or grateful ghost) is a folktale present in many cultures throughout the world. The most common story involves a traveler who encounters a corpse of someone who never received a proper burial, typically stemming from an unpaid debt. The traveler then either pays off the dead person's debt or pays for burial. The traveler is later rewarded or has their life saved by a person or animal who is actually the soul of the dead person; the grateful dead is a form of the donor.

Grateful Dead in Music:

Grateful Dead was an American rock band formed in 1965 in Palo Alto, California.The band was known for its unique and eclectic style, which fused elements of rock, folk, bluegrass, blues, reggae, country, improvisational jazz, psychedelia, and space rock, and for live performances of long musical improvisation.