So what's the reward for a job well done, eh? Yup.
This quest is part of the Burning Legion of Blade's Edge quest chain quest chain.
Wildlord Antelarion has implored you to travel to Death's Door.
Once you arrive there, use the Druid Signal to call down an
Evergrove Druid so that you can speak with them.
Quest Text Edit
Now there is an even greater threat from the Burning Legion. To the south
is a portal known as Death's Door, which opens upon the horrific world
where the Legion breeds its deadly hounds.
To get there, exit Evergrove by heading east up the ramp. Follow the path
south, through the Bladed Gulch, Razaan's Landing, Razor Ridge
and the Scalewing Shelf. Then, take the ramp down into the
Vekhaar Stand and enter Death's Door through the tunnel, south
Once there, use this druid signal.
It is a relief that Wildlord Antelarion has sent you to us. The problem
is much worse than first we feared!
The signal gun will summon an Evergrove Druid when you are within Death's Door. If lost, Wildlord Antelarion will give you a replacement.
-  Damaged Mask
-  Mystery Mask
-  Felsworn Gas Mask
-  Deceive thy Enemy
- [68G] You're Fired!
-  Death's Door
-  Harvesting the Fel Ammunition
-  Fire At Will!
-  The Hound-Master