"Of course I know." Yu Qingyun did not understand why Zhu Yanyi was telling her this. "But what does this have to do with refining tongues or other body parts?"
"There is a connection," Zhu Yanyi answered decisively. "Refining requires melting. To melt, you need fire. You could use chemicals, like in steelmaking, but chemicals are toxic. Things melted with chemicals cannot be used on the human body. Even if someone gave them to me for free, I wouldn't dare use them. To refine things for the body, I need natural fire."
Zhu Yanyi lifted her fishing rod. "In traditional medicine, fire is a natural resource and a helper. In ancient times, before alcohol was known for disinfection, we used fire. Ash from burned plants was called 'Hundred Spirits Powder.' Today, to refine useful body parts, we need fire. I have no fire ability, so I rely on external fire. It took me two days and nights without sleep to refine just one tongue. Imagine refining a leg or an arm. How many days and nights would that take? And the materials are hard to find."
Yu Qingyun was slightly stunned. she had not known the details of her work. Hearing this, she realized there was much she did not know. she sighed. "I was too naive."
Zhu Yanyi smiled gently. "Don't worry too much. If we can find Strange Fire, I can refine them."
"What is Strange Fire?" Yu Qingyun asked.
"Strange Fire is natural fire born in the world. The first fire that lit the world came from Strange Fire. It is called Chaos Fire. But this fire exists only in legends. In five thousand years of history, no one has seen Chaos Fire." Zhu Yanyi sighed. "So, without Strange Fire, I cannot do this."
"I remember Strange Fire is not just Chaos Fire," Yan Aohan said. "Hell Flame is also a type of Strange Fire."
Zhu Yanyi thought Yan Aohan was joking. "Brother Yan, that is Underworld Strange Fire. It is controlled by Venerable Yanluo. It is used to punish evil ghosts. Even if I got it, I could not use it. I am a healer, not a Judge or Yin Messenger. That hell fire is useless to me. Most importantly, Chaos created all things. Humans came from the beginning of Tai Chang. Human balance is set by Chaos Five Elements. Only things refined by Chaos Fire are suitable for the human body. Other Strange Fires will not work."
"I don't understand any of this," Yu Qingyun sighed. "What Strange Fire or not. Even if Strange Fire was in front of us, we wouldn't know. It is legendary. It seems my idea cannot be realized." Yu Qingyun felt lost. Thinking of those with missing limbs, he felt heartache.
Seeing Yu Qingyun like this, Zhu Yanyi also felt sad. "Third Senior Brother, all we healers can do is help them as much as possible. Instead of looking for fake parts, we should try to keep their original ones. Even machines work best with original parts. If broken, replacing parts may not satisfy. Humans are even more so."