Upon entering, go through the door and to the end of the corridor.
Carefully locate the ??? at G-8 on your left, and examine it to obtain the Key Item: Lynx Pelt.
CAUTION: Yagudo in this zone are "Tough" to "Very Tough" to level 75. Be patient and wait for them to turn their backs if you do not have a quick escape.
If you do the hunt for the ??? and are signed up for a Campaign Battle there, then if/when you die, you will NOT lose any EXP when you bloodport out.
Bring a Vellum and return to the Optistery in Windurst Waters (S). Trade the Vellum to the door for a cutscene. (Note: There is no need to do anything with the Lynx Pelt; trading the vellum will kick off the cutscene that you need. Having the Lynx Pelt enables the CS.)
Client: Yoran-Oran (Rhinostery, Windurst Waters (S)) Summary: A book that Yoran-Oran borrowed from the Library of Magic was supposedly stolen and taken to Giddeus by the Yagudo.
Game Script
SPOILER WARNING: Click here for additional details about this story line.