How do you get to Tercessuinotlim on aqw?

Citadel, go throught the cave and a message will pop up saying "You walk around the caves and get lost... You suddenly have no idea where you are..." Click continue. Go through the cave on the far right and you should see another cave. After, you should see a red portal surrounded by bones. To go through you must have 50 bone dust that you get from skeletal warriors throught Adventure Quest Worlds. That red portal leads to Tercessuinotlim.