Pau Yajin tells you, "So you've already helped us investigate the three other Tanada temples! You are both brave and dedicated. I must ask your assistance as well, as my colleagues Sayuji Jina and Meshenq have already done."
Pau Yajin tells you, "I ask you to journey to the Tanada Temple of Black Water, in the swamp at 24.2 S, 57.1 E. There you must find the Tanada assassin known as the Master of the Depths. Slay him and bring me his jade medallion. I will need his medallion to be able to get to the bottom of the corruption of that clan of Tanada."