Fly north and follow the "path of lights" (basically use the speed-up tornadoes) till you reach the small island at ( 1158, 10, -1186 ) Copy/waypoint 1158, 10, -1186 and enter Ssrez'Ras: Ruins of Stasis by clicking on the ruins.
Explore for clues.
Click the first clue, a snake skin at ( -14, 64, 19 ) Copy/waypoint -14, 64, 19.
Kill the Ssrez'Ras broodkeeper in this room and the Ssrez'Ras draft eel at ( 80, 64, 32 ) Copy/waypoint 80, 64, 32 to activate the elevator platform at ( 54, 65, 58 ) Copy/waypoint 54, 65, 58
Click the portal activator by the platform to go down.
Explore for more clues.
Click the second clue, a broken statue at ( 13, -25, 7 ) Copy/waypoint 13, -25, 7.