Balance Renewed

The Dark Elves seek power in excess. To some extent, they have found it. The price they have paid for their so-called freedom is well beyond the measure of the benefits it grants. Unconcerned with consequences, they bring ruin to the world around them. See for yourself: There is a witch elf who derives pleasure from tormenting the land and its helpless denizens. She traps and corrupts the wildlife of the Shadowlands, disrupting the tenuous balance that had begun to reemerge here. For the good of all, she must be stopped.

Find the Witch Elf, Teralith Blightdagger. She can be found to the northwest, past the The Sunken Strand. Kill her, then return to Deliaren Swordsinger at Mathrin's Watch.