So I finished the Chapter 3 mission that give me the Ferrum and The Secret of the Land book. I'm struggling to find Lady Ban in the first floor of the Cave of the Conqueror to get the next RTD quest. I'm at SM4, unless I need to keep leveling up. Please help.
I'm not sure if this is the quest I'm thinking of, but try going to the 1st floor of CC, enlarge your mini-map and look for red dots in it. One of those red dots might be the NPC you're looking for... GL!