|Title||<Envoy of Zanzil>|
|Race||Jungle troll (Humanoid)|
|Affiliation(s)||Darkspear tribe, Zanzil (enslaved)|
|Location||Northern Stranglethorn Vale|
Yenniku is Vol'jin's youngest son. As is a custom with jungle trolls, he was given to the Gurubashi tribe of Zul'Gurub. However, he was lost to the Darkspear tribe after they left with Thrall. He was later captured by Zanzil the Outcast, who had taken control of his body and mind and apparently sent him to the Skullsplitter tribe to make them join Zanzil in an army that would conquer Stranglethorn.
After being attacked by Ana'thek the Cruel, the adventurers of the Horde defeated the Skullsplitter Chief and bested Yenniku, retrieving Vol'jin son's soul using a , which they brought to Nimboya, a Darkspear troll sent from Orgrimmar to search for Yenniku.
- Ana'thek the Cruel says: You stay back! Da troll is mine!
- Yenniku says: Zanzil is creating an army that will wash over all of Stranglethorn! Bloodscalps, Skullsplitter, Gurubashi and Horde... all will serve Zanzil!
- Nimboya once referred to Yenniku as his own son in the quest , saying "...I at least know that my son's soul is free." His words were changed at some unknown point after the Cataclysm quest overhaul to "...I at least know that the soul of my chief's son is free."
- Patch 4.0.3a (2010-11-23): Level reduced from 41.