The original principles of radiation definitely could not be explained - not to mention whether she could explain the physics and chemistry knowledge clearly, just explaining the basic concepts and telling the other party what "radioactive elements" were would probably drive both sides crazy.

Even if she talked till her mouth was full, she would probably not be able to explain all the concepts, after all, the other party had no foundation in modern physics; and the other party might not understand what she was saying and would probably think she was crazy.

So we can only bring out the metaphysical argument again:

"Didn't our ancestors always believe that everything in the world is a balance of yin and yang, and that there is always a return? In the past, night-shining pearls needed to absorb sunlight to emit light, which is an example of a return. But Mu Xingzhi once said that this night-shining pearl can shine on its own and will not dim. It's like a person who works all the time without getting tired and doesn't need to eat or sleep."

"So I think there's something weird about something that can emit light on its own."

"How could someone not eat or sleep?" Kaiyang sneered. "If such a person existed, wouldn't it be invincible if we trained them into an army?"

Song Bo, who had been silent the entire time, then spoke up, "I heard there's a flower called Datura in Nanzhang. After taking it, people can't sleep or rest, and won't feel the pain of swords or spears. Many southern tribes use this flower to control captives and make them work for them."

When Su Qingluan heard Song Bo's description, the hairs on her back stood up immediately, and she even felt a chill as if she had been electrocuted: Could it be... that it was what she imagined?

Mu Xingzhi looked at Su Qingluan: "Why, Qingluan has also heard about this kind of person?"

Su Qingluan shook her head. "Those people are normal. The problem is the flower." Su Qingluan looked at Mu Xingzhi with a serious expression. "Mu Xingzhi, if someone tells you there's a plant that can cure all diseases, make you feel no pain, and even make you feel ethereal, be careful."

Kaiyang laughed and said, "Madam Su, why are you so serious all of a sudden?"

"Because..." Because of what? Because in her previous life, Su Qingluan knew that her country, compatriots, and even her relatives and friends had fallen into the abyss because of the product of this "flower".

But she couldn't say these words, and could only whisper: "I, I heard... this flower can actually secrete a juice that can cause paralysis and hallucinations in people. Because of the paralysis, you can't feel pain, and because of the hallucinations, you can feel ecstatic."

"Hmm?" Kaiyang was a little unimpressed. "Isn't this good? It can be used as a painkiller on the battlefield..."

"Bullshit!" Su Qingluan's long-term education has made her have an instinctive aversion and rejection to these banned drugs, and she subconsciously cursed.

It was obvious that the other three people present did not expect Su Qingluan to suddenly say such a thing. For a moment, the room fell into an eerie silence.

Su Qingluan finally came to her senses and realized that she had accidentally cursed. She immediately felt her face flushed and she wished she could disappear right there. "That... no, I might have been a little... excited..."

Mu Xingzhi smiled and consoled him, "Perhaps Qingluan, you know how terrifying that 'Mandragora' is."

Although she felt that she had done something terrible, Su Qingluan still felt that since this matter had been mentioned and there was someone who didn't take it seriously, then even out of the most basic humanitarianism, she should still remind these people a little.

So she thought for a moment and asked Songbo, "Have you ever heard why those captured were so willingly enslaved by the enemy tribe?"

Song Bo thought for a moment and said, "I heard that the mandragora can be used to refine a kind of poison that will make the person who takes it dependent on it from then on. They must consume it in large quantities."

Su Qingluan nodded. "Although I'm not sure if it's a Gu poison, I've heard that it's true. If you stop taking it, it's said that you'll feel like a thousand ants are drilling into your heart, a life worse than death. And if you take too much, the Datura flower is highly toxic, and you'll die from the poison."

Song Bo nodded: "What I heard is slightly different, but not too much."

Kaiyang gasped, "As expected, something must be wrong when things are out of the ordinary. Fortunately, Madam Su discovered the unusualness of the night pearl."

Su Qingluan weakly retorted, "Being able to emit light on its own without burning oil or charcoal, and without needing sunlight, is itself quite extraordinary... It's like someone who only wants to reap the rewards without caring about the cost. How can their wish ever be fulfilled?"

The other three people present thought it was very reasonable and could not refute it.

Su Qingluan looked at the sky. It was already bright outside, and she estimated that it was almost noon. She couldn't help but touch her stomach - she hadn't had time to eat in the morning before following Kaiyang here, and now she felt a little hungry.

But this is someone else's home after all. She ran to someone else's house to ask for food early in the morning. Although she thought she was Mu Xingzhi's friend, even if he was a friend, the other party was a male friend after all, and the two of them were not "best buddies", so Su Qingluan still had some baggage.

So she thought about buying something to fill her stomach on the way to town later - after all, today was just a contract signing, and there was no need to waste brain cells on the verbal battle like yesterday.

Thinking of this, Su Qingluan planned to find an opportunity to slip away, so she didn't say that she was hungry.

She didn't say anything, but Mu Xingzhi was a very perceptive person. Although Su Qingluan thought her action was very covert and unnoticeable, it was still captured by Mu Xingzhi.

But people with high emotional intelligence are good at talking. Mu Xingzhi said to Song Bo, "It's time for breakfast now. Song Bo, go prepare some porridge and some side dishes. Since Qingluan has arrived, let's sit down and have a simple meal together. Kaiyang, you can come too."

Kaiyang was trying to refuse with great trepidation, but Mu Xingzhi's look froze him in place.

Although Su Qingluan was invited, she didn't want to stay for dinner. It wasn't that she was being hypocritical, but she was pretending to be hungry. It was really—

"No, I have something to do later. I have to go to Xie's house at 1:00 PM today to sign a contract - 'Su Ji' will have work again!" Su Qingluan felt very happy when she thought about the money to be earned again, and even the feeling of hunger was relieved a lot!

In fact, the time they agreed on was at noon. Su Qingluan came a quarter of an hour earlier to be prepared. However, she hadn't scheduled the meeting time too early yesterday—after all, she wanted to sleep in, but it was ruined.

However, Su Qingluan found that as soon as she said this, except for Song Bo who went to the kitchen to prepare breakfast, the other two people stared at her. After a moment, Kaiyang asked in a weak tone: "After all, you are the owner of a shop. How could you be so unguarded that you didn't even realize that you were being ambushed?"