I talked around, their little text is hard to read, but I guess one of them wants me to buy a secret herb or whatever and a horn of life. I bought the herb and went back to him but nothing seems to happen. I could buy the horn but I don't want to waste that much. Others are talking about "Say Password" and wait or something, not exactly sure I understand how/where I'm supposed to say it. I'll keep asking around, I guess I could try buying the horn then reloading the save if it doesn't work. I think you forgot to actually put the spoiler tab in.