Onyxia's Lair attunement

Dragonkin Menace in the Burning Steppes

• To start the quest line, you must speak with Helendis Riverhorn at Morgan's Vigil in the southeastern part of Burning Steppes. Starts the quest Dragonkin Menace.

True Masters chain in Lakeshire and Stormwind

• The next set of quests starts with The True Masters. You are sent to Lakeshire to, then Stormwind Keep to , then right next to him, then back to Lakeshire and finally Morgan's Vigil again.

The search for Marshal Windsor in Blackrock Depths

• will give you the quest Marshal Windsor, in which you search for who is located north of Ruins of Thaurissan in Burning Steppes.

• After that, you need to return to Marshal Maxwell to get Abandoned Hope, which sends you to Blackrock Depths in search of Marshal . Find him here, and he will tell you to return to Marshal Maxwell.

Jailbreak from Blackrock Depths

• Travel back to Blackrock Depths and hunt early mobs like Anvilrage Guardsmans, and Anvilrage Wardens. One of them will drop . These can even be found outside of the Blackrock Depths instance itself. Upon obtaining, you will talk to Marshal Windsor once again. He will then give you A Shred of Hope. This requires you to kill General Angerforge and Golem Lord Argelmach in order to retrieve documents from each. Then return to Marshall Windsor to start the escort quest Jail Break!

• Escorting Windsor first involves him getting some gear. This is best to do with a group and to have cleared the mobs outside ahead of time as Windsor can easily pull more than a group can handle. Once you successfully escort him out of Blackrock Depths, you will first go to Morgan's Vigil and hand in the quest,then meet up with him in Stormwind at the front gates with the quest Stormwind Rendezvous.

The Revelation in Stormwind Keep

• Head to the Stormwind gates and talk to . He will get Marshal Windsor. Talk to him to start The Great Masquerade. There is a lot of story which you should just watch - don't try to help.

Haleh directs you to Upper Blackrock Spire

• Afterwards, you get and are told to restore its power. Do this in Winterspring with . She is located in the mountains south of Everlook (read here). She gives you the quest Drakefire Amulet so you can get in Upper Blackrock Spire. Completion of this quest will give you the and in turn access to Onyxia's Lair.