I don't remember or not, but I don't know if I have that quest, but, i was looking under Marleybone, and it said I had to complete that, help?
Once you complete the Krokosphinx, you need to see the guy in the Balance school, who will send you back to the Oasis. You will get the quest to go to the Tomb of Storms there. You must complete the Tomb of Storms main story line to move on to Marleybone.
