This quest is not available in game.
Ebru in the Wailing Caverns wants you to kill 7 Deviate Ravagers, 7 Deviate Vipers, 7 Deviate Shamblers and 7 Deviate Dreadfangs.
Naralex had a noble goal.
Our great leader aspired to enter the Emerald Dream and help regrow these harsh lands back into the lush forest it once was. But something went terribly wrong.
Naralex's dream turned into a nightmare and corrupt creatures began to inhabit the caverns.
While some Disciples of Naralex seek to awake our master, my concern is with ridding these caves of the evil beasts.
Brave the caverns, <name>, and eradicate the deviate spawn.