Location: This quest takes place in Darkshore.

Shortly: Disgusting Workbench in Cliffspring Falls caves wants you to take Apothecary’s notes to Tharnariun Treetender in Lor’danel.

How to: You probably stumbled upon this quest while doing Quest: A Cure in the Dark or Quest: The Corruption’s Source. Take the notes back to Tharnariun Treetender outside of the cave or in Lor’danel.

The Rewards are 4 silvers and 250 reputation with Darnassus.