1. Head to the legendary island and find the dragon located behind the Scribe's house.
2. Needless to say that the dragon does not speak to you or give you the key without having the following elements:

• You must be level 80
• You must have killed the boss thanatos behind the crypt Sc beafor the harvester NPC
• You must have 2M5 golds

Tell him “stabilize” then “karma” then make your choice between “evil” or “good” then “key” so that you receive the key of your choice

 Reward:
 key of Artherk or Ogrimar