Legend

"Uh can't we come to some sort of deal?"
"Oh? This is an interesting approach. Nobody Raltec has sent so far has attempted diplomacy before. Okay I'll play. What did you have in mind?"
"Perhaps maybe I can buy the Gray Blossom from you?"
"And what use would I have for gold or anything else you might have? Nope, you'll have to do better than that."
"But what use do you have for the Gray Blossom? I mean Raltec just wants some of it for a spell he's working on, and you can just grow some more, what's the big deal?"
The vampire's eyes narrow when you say that. "It pleases me to take care of something I created, and that's reason enough! Besides given all the other adventurers Raltec's sent down here, I'm not inclined to give anything to him! Perhaps if he'd come here in a civilized manner in the beginning things would be different, but it's a little late for that now."

You're running out ideas, when the vampire comes up with one of her own.

"Well since you seem to be a reasonable sort, I'll tell you what. I'll give you some Gray Blossom, for some of your blood."
"Er..."
"Oh come on, it won't be a lot, just a little. Don't worry you won't be turning into a vampire or anything like that."
"Isn't there some other agreement we could come to?"
"Not really, unless you're going to go out and capture someone for me and bring them here. It's up to you."