All ancient cultivators used furnaces made from six one mud for Dan refinement.
The recipe of six one mud was incomplete since a long time ago and the dispute over the exact content had been going on for over a century without any definite conclusion. Zhang Jintong was telling the truth—unless some forgotten treasure was discovered, this was the only divine furnace left in this world.
"The trace of a hut outside the cave was said to be left behind by our founder, but whether it is true or not I cannot say. The water from the waterfall can be used for Dan-refining, so feel free to use it. Oh, will you be staying here or going back to the temple with me?" asked the old priest.
"We'll be staying here. Thank you, Celestial Master," said Gu Yu.
"No problem. I will send people up with some necessities, today's dinner, and your luggage. I will visit you again tomorrow."
