Defeat Yazma in Atal'Dazar.
Zul knows dat we cannot let de first king rise from his grave. Dazar would be more than a figure head for Zul's dream troll empire, he would be a force dat could rival de very loa. But I cannot just let Zul get away. I and mine will follow Zul, but I want you and yours to enter Atal'Dazar. Yazma is trying to buy time and keep de tombs sealed away. You will need to fight your way through to her and you will need some allies to do so. Slay her.