the pc's are members of a militia. their superior officer recieved a request for aid from an elven grove to the north. they are busy with heavy orc raids and can only spare a few men, the party of 5 pc's. the party has just retrieved a rod, an elven artifact. they know it's poweful but have no idea what it does or how to use it. it was stolen by a half-elven necromancer who managed to convince a tribe of orc warriors that he was a god. the party has returned with the artifact to the elven grove it was stolen from, only to find the elves scattered and the forest infested with undead, mostly ghouls, some ghasts, and a dire boar zombie. they can't find the leader of the grove, a high level elven bard and he is presumed dead. the rest of the elves are in hiding (not fighting, this is a particularly pacifist group of elves). i had expected the party to return to their patron military group for reinforcements. they have no hope of clearing the entire forest of undead, who's number mount every time they kill another elf (ghoul fever and all). but they seem determined to stick it out in the forest which is fine with me. but, i hadn't planned for this and i get bored with constant hack and slash, so i need something interesting to run them through while they are in this corrupted undead grove.