"How much for a recipe?" Peter Brown asked indifferently.
The stall owner was a middle-aged man who smiled faintly and said, "These are all useless elixir formulas, usually bought by alchemists for research. I assume you are an alchemist, right?"
Peter also smiled and said, "That's correct. I noticed that some of the recipes are still useful and can be used as references. If the price is reasonable, I'll buy more."
"Ten cultivation coins each, that's how I've always sold them."
Peter glanced at the pile of jade slips containing elixir formulas and said, "Do you know how many 'dead formulas' you have here?"
"Many of these are imagined by alchemists and have never been tested. I'm not sure if the recipes are correct, but my collection is the most complete in the market, with more than 10,000 recipes."
