Clan Morneriver was the wildest and most unpredictable of the Arathi clans. The only predictable thing about them was their worship of Mnesthes, their god of life, death and the chaos of nature.
Leaders of Morneriver were given the title Zha, followed by the name of the leader. During Thoradin's rise, the leader of Morneriver was Zha'ginev.
The Morneriver normally roamed by the cliffs of what was to become the Thandol Span. They were considered too chaotic to rely on during the Arathi Freedom Movement, and did not pledge themselves to Mallick Vitalian.