That looks good. "Minor Haunting" for a name?
“Not really. What I was referring to are lesser ghosts. They’re merely restless spirits whose passing on to the next world is prevented for a number of reasons: For instance, the person may have died with an urgent need to pass on an important message to someone or accomplish some sort of unfinished task. Thus, it remains on the Prime Material Plane, unable to rest until the message is delivered or the task completed. In another case, the lesser ghost may, as true ghosts, be angered over its betrayal and murder in life, and the creature cannot rest until the one who committed the crime against it is properly punished. A lesser ghost might also, through its own misbehavior in life, find itself bound to an unhappy existence between worlds until it finds some sort of way to atone for its deeds. Lastly, the relatively weak spirit might remain under the domination of a greater ghost, free from obeying it, but tormented and unable to rest until the creature is destroyed.”
“As true ghosts, lesser ghosts likewise are limited to staying near the area of their original demise. They may, however, wander about the general vicinity, although their weakness makes it difficult for them to make their presence known. In some rare cases, lesser ghosts have been known to be tied to particular objects—usually something it was fond of in life—accompanying the object when it is removed elsewhere.
“During their wanderings, lesser ghosts are entirely invisible, for it is only at the location where they died, or where their body lies, that they may become visible to the living. Their presence might otherwise be noted through a gentle wafting of air as they pass by, and some individuals seem able to even sense their presence.”
Retain rejuvenation?
Do we want some sort of "tied to place" ability, or just let 'em wander like standard ghosts?
Natural invisibility?
If they can't move from their special place, does the limit on manifestation make sense? On the other hand, I'm not sure invisibility is needed either, since they can just be ethereal, like Cleon says.
Skills: 24
Ghosts have a +8 racial bonus on Hide, Listen, Search, and Spot checks. Do we want to retain this, or give lesser bonuses in these skills?
Feats: 2
Ability Focus (haunting)? Iron Will?