This quest is not available in game.
Retrieve Khadgar's Essays on Dimensional Convergence and deliver them to Watcher Mahar Ba in Nethergarde Keep.
Master Mazen's directions were quite clear: Deliver a very important essay to Watcher Mahar Ba in Nethergarde Keep.
But I had never been to the Blasted Lands before! The journey was frightening!
When I got to the Swamp of Sorrows, I made a wrong turn and ended up surrounded by horrible plant-like swamp creatures. They lurched as if to attack me so I ran. But in my haste I dropped the essay. One of the beasts took it I am sure.
Could you please try to retrieve it and deliver it to Mahar Ba?