Defeat Zobim and Splinter in Amarkand to obtain Zobim's bone and Splinter's heart. Then speak to Alchemist Lancaster at the entrance to Marauder Hold in Celestine Caverns Use your quest tracker to see your progress.
Farmer Vasco: Who's this? It's been a while. What brings you? NakanoAzusa: How are you? NakanoAzusa: Are you living an honest life now? Farmer Vasco: Oh boy! After the last incident I'm no longer Farmer Vasco: involved in anything questionable. NakanoAzusa: That's good. Here, take this. Farmer Vasco: Hahaha, no need for gifts. Huh? Isn't this flame Farmer Vasco: essence? How did you know I need this? HiiragiKagami: Well, apparently everyone in Lakia knows. NakanoAzusa: Your son must need it like the last time; NakanoAzusa: you really do care about him Farmer Vasco: Yes, exactly. My son's working on a mission and Farmer Vasco: he's been complaining about not being able to Farmer Vasco: obtain flame essence. NakanoAzusa: I've heard he suffered some memory loss. Farmer Vasco: You know about that? You're source is full of Farmer Vasco: information. That's correct, though; after he hurt Farmer Vasco: his head he lost his memory for a while. It was Farmer Vasco: difficult for him to get it back. NakanoAzusa: What medicine can help recover lost memory? Farmer Vasco: He lost his memory because of a strong physical Farmer Vasco: shock, so the solution was to apply the same Farmer Vasco: shock again. The medicine I prepared Farmer Vasco: was full of strong ingredients. HiiragiKagami: Can't you just hit him on the head, hard? Farmer Vasco: You could kill a person that way! Write this Farmer Vasco: down. You need Zobim's bone and Splinter's heart. Farmer Vasco: Take those to Achemist Lancaster and he'll make Farmer Vasco: the medicine for you. NakanoAzusa: Lancaster is usually out in front of NakanoAzusa: the Marauder Hold? Farmer Vasco: That's him. I wish you luck! HiiragiKagami: Keep living the good life now!
Reminder Dialog
Farmer Vasco: You know where the monsters are since you've Farmer Vasco: fought them before, right?