Central Yeti Tribe
Comprising the vast majority of the Horde's numbers, the Central Yeti Tribe has always been the de-facto leader of the whole Yeti civilization; while all of the three Tribes pride themselves in being superior to the others, the only one with decisional power over matters concerning the whole population is the Central one, due to its position and aforementioned superiority in numbers.
This tribe's nest spans much of the central stretch of the Mor'Gul chain and down into its entrails, and as such the whole area is considered pretty dangerous, with only a few known safe passages to and from Obsydia proper.
Ara was held captive for decades in one of the central tribe's nests, only to be used as a bargaining chip by El-Ur,Ur, securing Koreya Fauner's allegiance in the coming war.