In Speaking with Gan'zulah, the dead chieftan of the Bloodscalps, Gan'zulah, orders you to attack his tribe's enemies the Skullsplitters, and to defeat their chief, Ana'thek the Cruel. If you succeed, he promises to reveal the location of Yenniku, the missing son of the chief of the Darkspear tribe. You must also complete Speaking with Nezzliok to move forward with this quest chain. This quest is part of a long chain, all available in Grom'gol, the first being Hunt for Yenniku which can be obtained from Nimboya at the north exit to the camp.