Library of Erudin ( -49, 153, -185 ) Copy/waypoint -49, 153, -185 (Under a table in the very top room of zone)
Vasty Deep: The Abandoned Labs ( -183, -15, -282 ) Copy/waypoint -183, -15, -282 (need to kill Zaina Zumurrud in the library then use book at ( -126, -60, -278 ) Copy/waypoint -126, -60, -278.48 to port up)
Inspect Potions: Transcendence of Life and Death Volume II (Meta reward from the collections.)
Speak to Sralk the Sneaker in Obulus Frontier ( -12, -181, -358 ) Copy/waypoint -12, -181, -358
Go to Crypt of Dalnir: Ritual Chamber (Heroic) and find Srilk in the very last room after you have killed The Kly ( 36, -164, -602 ) Copy/waypoint 35.5, -163.8, -602, and kill him. He is level 105 ^^^.
Use an ancient tome key that Srilk drops to unlock and read the syllabus
Take the unlocked syllabus to the Captain.
Report to the Sergeant.
Look for your own personal essence. This is a class specific Mirror: