Winding Slitherdrake?

Can’t seem to pinpoint what quest I’m missing to get this or where to go. I’ve tried WoWhead with no luck. Can you point me in the right direction? Please and Thank you.

Pretty sure you can’t get it until next week


I actually was able to find the answer. WoWhead is telling me Thaldraszus but when I looked up the achieve in-game, it says in Zeralak caverns.

Correct. Kaivax mentioned it in a thread in General Discussion: