Hepsar didn't want to but didn't dare, because it was related to his throne, they just ordered that the kidnapped person's life should be saved anyway.

They only said that the person was distinguished and could not suffer even the slightest harm.

Li Wei and the others fled overnight, and they had left Numidia and came to Africa.

"The Roman army hasn't come to Africa yet, but I believe they will arrive soon."

Zafros said.

Wufa nodded, and Li Wei also had a surrendered legion and a small number of soldiers stationed in Africa. In fact, it was still a war zone.

"I have already inquired that there is a city not far ahead. Let's rest there for a while, and I will get you medicine."

Zafros said.

"Okay, thank you so much."

"What are you saying thank you both?"

Li Wei sneered coldly, waiting for his army to chase you will feel better.

Finally, the three of them hid in a small wood outside the small city, and then Zafros went into the city to grab the medicine, and Wu Fa tortured Li Wei.

The torture here is not physical torture, but constantly asking him questions.

After getting the sword-making method provided by Li Wei, Wu Fa would ask some questions every three to five, which made Li Wei complain about it to verify whether Li Wei was involved in it, which made Li Wei a lot of trouble.

Wufa is completely different from ordinary Germans. Today's Germans are rude and savage and don't know the slightest discipline. On the contrary, Wufa is meticulous, determined, ambitious, and extremely easy to learn.

He was very interested in everything related to weapon warfare.

After Zafros came back, he carried a large package in his hand.

"This is what you want."

Zafros said.

Wufa opened the package and saw that there were various things inside.

"From today, you teach me how to make a sword."

Wufa said.

"But how to teach without a melting pot?"

Li Wei asked.

"Just teach those things that don't need a furnace, such as the catalyst you said."

Wufa said.

Li Wei's eyes narrowed slightly. He glanced at Zafros. Zafros turned his head to the side. He probably also knew that once Wufa learned these things, Li Wei was likely to be killed.

"Ok."

Li Wei said blankly.

"This is sulfur. We must grind it very finely, very finely, just like powder."

Li Wei took out a clay pot and said.

Wu Fa took the sulfur, he looked at it carefully, and then licked it cautiously, which made Li Wei feel sick.

"This thing is poisonous, you'd better not eat it."

Li Wei said.

"poisonous?"

Wu Fa asked suspiciously.

"Yes, what did I lie to you for? This thing is poisonous to saltpeter, and it is easy to get respiratory diseases when you bring it to your body."

A vague light flashed in Li Wei's eyes.

"What are respiratory diseases?"

Wu Fa asked very learnedly.

"This is my general term for some diseases, such as the nose, throat, lungs and other diseases caused by the respiratory system are all respiratory diseases."

Li Wei said.

Wu Fa knew that Li Wei was a great philosopher and was quite proficient in medicine, and even opened the Capua Academy.

But Wu Fa was a suspicious person and didn't immediately believe his words.

"You didn't lie to me?"

Li Wei looked at him contemptuously. He didn't understand anything and he asked questions all day long to explain to you. Do you understand?

We lied to you!

Li Wei's eyes made Wufa feel uncomfortable, but in the end he held it back.

"Then let the sulfur and saltpeter be there first."

Wufa said.

"No, I don't want to, let you go."

Li Wei said hurriedly.

"If you say let you go, let you go, where is so much nonsense."

Wufa said fiercely, "Dare to say one more thing, be careful I beat you."

Hearing this, Li Wei reluctantly accepted it and sealed it.

Wu Fa looked at him contemptuously, this man was too squeamish, and asked him to do whatever he wanted to beat him.

"I can't as well put everything in his place, and I can relax."

Zafros thought.

After thinking about it, Wu Fa agreed. Such a large bag of things is also troublesome to carry. Of course, Li Wei's free labor can be used as long as it can be used.

Li Wei was dissatisfied with this on the surface, but he was already happy in his heart.

Then the three of them rushed, while Li Wei taught various knowledges of Wufa.

After a long journey, they are getting closer and closer to the Mediterranean.

At this time, the interrogation in various places became more and more stringent. The Roman army had found their traces, and there were interrogation posts everywhere.

Li Wei noticed the fierce light flashing in Wu Fa's eyes more than once, and he knew he couldn't wait any longer.

Li Wei carefully mixed the sulfur and carbon powder in a 16:3 ratio, and then said: "This is what I am talking about as a combustion aid. As long as you add a little to the furnace, the temperature of the furnace can be greatly increased. "

Wu Fa took the mixture over carefully, and because Li Wei said it was poisonous, he also had a resistance to it.

"Not bad."

Wufa nodded and said.

"Why didn't you light a fire today? I have been feeling sick recently, and I feel like I'm going to have a fever."

Li Wei said.

In fact, he did not lie, neither in his previous life nor in this life, he had not lived such a life of upheaval and displacement.

The real wind, food and sleep, can't even drink hot water, if he weren't still young, he would have fallen down a long time ago.

"The limelight has been too strong recently, so it's better not to start a fire."

Wu Fa said coldly.

"But look at my face."

Li Wei said.

Wu Fa found that Li Wei's face was indeed flushed, but he had no intention of changing his mind.

"It's better to have one, the weather is getting colder and colder."

Zafros said.

Hearing this, Wufa no longer refused, after all, Zafros saved his life.

The three lay silently around the fire, and not far away was a tied war horse.

Li Wei turned his back to the fire. This was a habit he had cultivated these days, and Wufa and Zafros had no doubts.

What they didn't know, Li Wei was quietly opening some earthenware pots containing a mixture of sulfur and charcoal, throwing some of them underground, and then filling them with saltpeter ~lightnovelpub.net~ and stirring them carefully.

One sulfur, two nitrate and three charcoal, this is the ratio of black powder. Of course, one sulfur here is one catty, and both nitrate and charcoal are two. This is very close to the ideal ratio of black powder in later generations.

As there is no weighing tool, Li Wei can only mix roughly based on experience. He prays to the gods and Buddhas in the sky, and the proportions must be correct.

His movements were very slow and did not attract their attention at all.

After doing all this, Li Wei concealed all traces and stood up.

"Why are you going?"

Wufa opened his eyes and asked.

"Can you solve a big hand?"

Li Wei said unchanged face.

"Understand in my sight, don't try to escape."

Wu Fa said coldly.