A new female ninja NPC located in Hebian-To. You mist have completed the Temple of Black Waters quests before you this NPC will flag you for this quest.
Tanada Sajo tells you, "Greetings! I can see you have aided my clan in the sensitive matter of the Temple of Black Waters. I am Tanada Sajo. You have aided us once before, so I must ask for your help again. Though your actions at the Temple of Black Waters helped free the majority of our clan from the thrall of Aerbax, another important task remains."
Tanada Sajo tells you, "Because Aerbax succeeded in corrupting the Masters of Air, Earth, and Water, he was able to steal the scroll of each House. Only my uncle's House of Fire remained uncorrupted. Aerbax has locked the scrolls inside infernal devices of his own creation and continues to try to influence the acolytes of the orders through them. We cannot appoint new Masters of the schools until the scrolls are recovered. Please, journey to the Chamber of the Scrolls in the southern mountains at 52.2S, 63.2E and destroy the devices imprisoning the scrolls. Free the scrolls and bring them to me, and I will see that you are richly rewarded."
Shortcut to the portal:
From Baishi Portals - 50.1S, 63.5E, take the Baishi Portals portal to 50.1S, 63.5E and run 2.12 clicks to 52.2S, 63.2E.