WOW Power Leveling: The group that appeared after you picked up the crystal will not stop
To get the bonus, go over to the dragon’s nest and pick up WOW Power Leveling one of the eggs. Defeat Glint for the bonus. And it’s back to the colder climate.
Note that the group that appeared after you picked up the crystal will not stop chasing you. You will be forced to kill this group; which you should do when clear of all other groups, in the event that they do aggro and chase you while running.
You’ll likely notice the new henchmen at your disposal and a new group size. Either recruits the henchmen or fined a group and head off into the mission when ready.
You may want to bring a Signet of Capture along since the Facet of Elements has the Lightning Surge elite skill. This quest is beyond easy and won’t take you very long at all to complete.
Once you get to Thunderhead Keep itself, light the torches quickly and then help the NPC undead. I’d suggest pulling back to where the King is and dealing with the waves there. You need to be aware of his life though and make sure the healer knows to watch his back.
Then Dorian comes, you kill him, and you finally complete the long and painful mission, now for a much warmer environment.