The Princess of Northern Land

To say or not to say? Lin Ziyin knew that if he stated the conditions, Chu Suifeng would definitely become more curious about him. In fact, she wants to use her expertise to serve the land more.

"I can tell the prince a way to prevent iron tools from rusting." Lin Ziyin replied, "I also propose improving the sharpness and hardness of the weapons."

"Can you really do it?" The most excited person was not Chu Suifeng, but the evil-minded Si Jinhan. "You know what will happen if you deceive the prince and me."

"Third Young Master." Lin Ziyin was also angry, "I don't have that much perspective. And as a woman, I don't have much interest in battlefield matters. If I hadn't been born in Fengcheng and my family was in Fengcheng, I would I will never tell you this secret."

"What do you want?" After having dealt with Lin Ziyin several times, Chu Suifeng has become accustomed to negotiating terms with her first. "I hope that the prince can provide me with some parts when I need them."

"Okay." Chu Suifeng agreed simply. This deal is a good deal. As long as this girl wants it, he will be able to get the blueprints from Tianji Tower and get benefits from it.

"I believe in the prince's promise." Lin Ziyin breathed a sigh of relief. Chu Suifeng knew how to do some things without her reminding him. Like, keeping what she does secret, for example, keeping her family safe.

There is a kind of person who can be taken seriously by her own weight, and she, Lin Ziyin, is currently considered one, at least in Chu Suifeng's eyes.

"Find her a charcoal pencil." Chu Suifeng ordered the guard standing outside.

After a while, all the charcoal pens and paper were found.

Lin Ziyin picked up the pen and started writing, "Applying chromate or dichromate to the surface of weapons can prevent rust..."

Si Jinhan stood beside her and watched carefully, while Chu Suifeng seemed much calmer. However, his right hand kept tapping the palm of his left hand gently, which still revealed his true mood at the moment.

"Your Majesty, please." Lin Ziyin wrote a lot of content and then handed it to Chu Suifeng.

"Pollution?" Chu Suifeng looked at it carefully, then stared at her and asked.

"Yes, chromate is a substance. If the prince discharges it improperly during the smelting process, it will cause pollution. In other words, crops cannot be grown in the place where it is discharged. If people drink the contaminated water by mistake, it will cause pollution in the long run. Death." Lin Ziyin gave him some knowledge by the way. "The other metals are even worse."

"The temperature is higher than that of making iron?"

"right."

After hearing this, Chu Suifeng was silent for a while, "Write down what you want to use."

"Thank you, Your Majesty." Lin Ziyin breathed a sigh of relief, and then quickly drew some sketches on the paper and marked the dimensions.

"What are these used for?" Seeing the sketch, Si Jinhan looked at it for a long time but couldn't figure out what it was.

Of course Lin Ziyin would not tell him what to do with the parts she wanted. She pretended not to care and looked at Chu Suifeng and said, "Your Majesty, can the daughter of the people go back?"

"Take her back. What you want will be given to you in a few days," Chu Suifeng said.

"Thank you, Your Majesty." Lin Ziyin was very happy.

How she came here is how she returned.

Lin Changshu has been restless at Si's house. Even though Si Demeng and others are particularly warm and thoughtful to him, he has always been worried.

It wasn't until he saw Lin Ziyin's safe return that his eyes lit up. This good brother who loved his sister was so excited that he almost shed tears in public.

"I kept my word and brought her back unharmed." Si Jinhan said with a smile.