Zul'Aman is a 10-man raid dungeon located in the Ghostlands. Although it requires no attunement and is intended to be more accessible to players on tight schedules, it was designed to be more difficult than Karazhan and with better loot.
The instance will involve players fighting four avatars of the forest troll "gods": the bear, eagle, lynx and finally dragonhawk. These gods have been channelled into the bodies of four troll warriors. After defeating the four gods, players will face off against the witch doctor that called on the gods, and finally against Zul'jin himself. The final troll boss will not only be a powerful foe; he'll also be able to draw upon the ghostly spirits of each of the four liberated animal gods and change his own shape to access their powers.
The instance has multiple quest givers outside the entrance for events that occur inside, including time-sensitive missions that offer differing rewards based on how quickly you accomplish the task.
Information adapted from:
WoWWiki - Zul'Aman
Nalorakk: Nalorakk is the Amani lord of bears.
Akil'zon: Akil'Zon is the Amani lord of eagles.
Jan'alai: Jan'alai is the Amani lord of dragonhawks.
Halazzi: Halazzi is the Amani lord of lynxes.
Zul'jin: Zul'jin is the leader of the Amani trolls and the final boss of the Zul'Aman instance.