Gulkalla was worried as the Impetusium rebuilding efforts had been disrupted by Hero Spirits. You sent the spirits back into the Aether Flow, but that was only the beginning of your mission. You defeated the Mau chieftain Umkata the Restless at Gulkalla's request. To do so, you first had to locate his three tokens and then raise the spirit of Umkata the Restless from his grave. You made sure he would never come back.