This is part of the Reagents for Reclaimers Inc quest chain.
This is the last of the items, and I won't lie, it ain't pretty. I'm also expecting this to take you a little bit longer than the other items.
So, enough with the warning, let's get this started. Leftwitch says he needs; ten brains from either mana eaters, mage hunters, or ley hunters. Ten nether wings from a nether maiden, sister or sorceress. And... ten vials of doomwarder blood from a doomwarder captain, or lord.
Simple enough, huh? Sheesh... if you wanna pass on this one, I'd understand.
I didn't even realize these demon things were in Desolace. Last I read, centaur pretty much owned the land after the night elves picked up and left years ago.
I wonder why they took up here, and how.
Honestly? I wouldn't have thought it. You're amazing, <name>. Taking on demons for a mage's experiments, and coming back in one piece to boot. Great job!
Pretty much as the quest text calls out. Remember that it is the Doomwarder Captains and Lords you need, not regular grunt Doomwarders. You'll find all of these in the vicinity of Mannoroc Coven, in the south end of Desolace, past the Kodo Graveyard.
There is a crumbled rectangular ruin at [50, 82]. Within it, both the Doomwarder Captains and Nether Maidens can be found. Ley Hunters can be found nearby.