Location: This quest takes place in Darkshore.

Shortly: Tharnariun Treetender in Cliffspring Falls caves’ entrance or Lor’danel wants you to kill Zenn Foulhoof and 10 Vile Grells.

How to: You probably stumbled upon this quest while doing Quest: A Cure in the Dark. Enter the cave and you will find Zenn in the depths of the cave in one of the rooms.

The Rewards are 4 silvers, 250 reputation with Darnassus and Goat Hide Vest or Woven Mail Leggings or Satyr Horn Staff.