Feng Qingmo scrolled through the secret letter and raised his head in shock. Qi Yu asked him: "Do you think it's trustworthy?"

Feng Qingmo muttered to himself for a moment, "I think so."

Who would have thought that Feng Qingmo also trusted Chu Yixuan! Qi Yu pointed outside: "Did Master Xiao come by just now?"

Feng Qingmo was also clever, and immediately understood. "You suspect him … is he a spy for Helian Cheng? "

"Do you think that's possible?" Qi Yu asked.

She was afraid that she would wrongly accuse a good person!

Feng Qingmo fell into silence once more. "He frowned slightly and slowly sat down." If he is an accomplice of Helian Cheng, then the reason why Helian Cheng sent out the information regarding the Eastern Barbarian and handed it over to us is to prevent Helian Jing from obtaining victory? "

"Maybe it's because Helian Cheng doesn't want Helian Jing to show off his might!"

"You mean that even though we have captured two spies, the hidden trouble around us has not been eliminated."

"Is that possible? The truth about retreating to the peach field that day, only you and I knew about it, not Xiao Ran. That's why he didn't stop those two from moving. That's why those two were exposed to us. "

"It's also possible that those two people only listened to Helian Cheng and Xiao Ran only had one line of communication with Helian Cheng."

's analysis made Qi Yu's heart jump in fear! Why didn't I think of it? If that's the case, what should we do? "

Feng Qingmo pondered for a moment, then said: "We can only plan it once more, and see his reaction. — What ingenious plan do you have?"

Qi Yu opened her eyes wide, "Why me again?"

Feng Qingmo couldn't help but smile, "Because you're smart."

"Alright!" Qi Yu curled her lips, "Since the crown prince thinks so highly of me, I won't refuse."

It's still young. Feng Qingmo's face was filled with a doting smile. He rather admired the little girl's straightforward spirit.

That night, Qi Yu found Xiao Ran and held the mask in his hand. "Master Xiao, I've come to find you for help again!"

Xiao Ran immediately stood up respectfully, "I wonder what orders you have? This subject will do his best. "

I still want to find all of you big aunties, big sister-in-law, and the little sisters to help me sew the mask, but the army and the citizens have already withdrawn their Kang City from the peach field, making it more scattered. It's still not convenient for me to find each of them, so I still want to ask Lord Xiao to help me distribute the mission.

"Of course! This official will send someone to handle it! " Xiao Ran hurriedly took over Qi Yu's mask, "I wonder how many people Princess Wang Fei needs this time?"

"The more the better! For the safety of Kang City, I hope everyone can overcome this obstacle and work overtime tonight! "

"Alright!" Xiao Ran immediately turned around and ordered, "Go quickly, send out all of the officials and constables of the government and follow wangfei's instructions. Be careful and gentle and try your best to pacify the people's hearts."

"Yes, milord."

"Also, take out some millet from your stock and distribute it to the families of the commoners. They will work hard during the night and make a bowl of millet congee in the middle of the night."

"Yes, my lord!"

Qi Yu silently looked at Xiao Ran, if not for the fact that she suspected the relationship between him and Helian Cheng, based on his expression, it was hard to believe that he was Helian Cheng's spy!

It would be great if this was just a black dragon.

In this world, there were many people who lived in broad daylight, and that was what mattered.

At this time, Xiao Ran turned around and smiled at Qi Yu apologetically: "Princess, the order has been sent out. Please do not worry."

"Alright, then thank you, Lord Xiao!" Qi Yu nodded, and heaved a sigh of relief, "There's no other way, I can't do anything during an abnormal period of time, so I can only trouble the Kang City's elders."

"Of course, of course!" Xiao Ran nodded his head.

Uh, this expression could even be described by nodding and bowing! Qi Yu had always felt uncomfortable with Xiao Ran's attitude. Was he really putting up with the humiliation for some sort of goal by bowing and smiling so politely?

He didn't know if it was because his neighbor was suspicious, but after receiving Chu Yixuan's secret letter, the more Qi Yu looked at him, the more she felt that Xiao Ran was not a good person.

"Alright!" She patted her sleeves, "Lord Xiao, you should be busy first. I still have some matters to attend to, so I'll be leaving first."

"Yes, Princess, take care."

Xiao Ran bowed respectfully and watched Qi Yu leave.

The servant girl that Feng Qingmo had arranged to take care of him was waiting for him outside the door. The two of them did not return to his room, but instead walked out into the imperial court.

Qi Yu went through all the medicine stores in Kang City. When they returned to the magistrate court, she and her servant girl were both carrying two heavy bags of things. It was unknown what they were carrying, but wherever they went, a faint stench of bitterness and fishy stench would permeate the air.

Whenever Qi Yu went to the medicine hall, there would be people who would quietly enter after the two of them left. They would point at the medicine cabinet and say: "Give me one copy of what that lady wanted."

The staff at the infirmary was shocked. "That... What that lady wanted was fish gall, which can be used to treat eye ailments. It can't be abused.

"Fish gall?" The two of them were stunned, "Oh, oh, yes, it's fish gall! Give us one too. "

"I'm sorry, customer. There is a limit to the amount of fish gall. That girl is going to take our remaining stock. If we were to take the gall bladder, it would take a few more days!"

"Is that so?" The two of them looked at each other, "Okay, then forget it. Let's go to another house to take a look."

"Sir, please take care!"

In the second infirmary, the moment the two of them entered, they inquired about the uses of fish gall. The doctor in the infirmary was a little surprised, he looked up at the two of them and asked, "May I ask, what is the purpose of fish gall?"

That person said: "It's like this, my family's young miss said that fish gall can cure the eye, and she insisted on us coming to buy some for her to return. Our host was afraid that young miss would accidentally eat a fish and cause us to harm ourselves, so he specially sent us to inquire about it.

"So that's how it is!" The doctor stroked his beard and smiled, "Your young miss is indeed right. This fish has the courage to cleanse the heat and detoxify the poison, as well as the liver-bright eyes. It indeed has the ability to treat severe swelling and pain. However, not every eye disease can be treated with fish gall bladder, so it's best if the cause is confirmed and the correct medicine is administered safely. "

"Thank you for your guidance!" That person cupped his hands and was about to leave when the doctor called out to them,

"Fish gall is poisonous. If you use it inappropriately, it may lead to poisoning. Therefore, you must mix it with other medicinal materials before it can be used externally. You must not abuse the fish gall carelessly, Miss."

"Thank you for your guidance, mister!" The two of them glanced at each other before turning around and leaving.

In Feng Qingmo's room, Qi Yu placed the bag on the table and spread it out: "Look, it's all fish gall! Originally, the more it was the better, but there was no other way, we just have to look through all the pharmacies in the place, and that would be it. "

"Bile is a scarce thing, and time is so short that it is difficult to gather more. However, I only know that fish gall can cure eye disease, and that fish gall is poisonous, but if you want to use it to poison, I do not know how to do so. "

"There are people who swallow raw carp to cure eye disease, but if you don't do it right, you will be poisoned. There are many harmful substances in the fish gall bladder. Once poisoned, it can damage the liver and kidney. If the fish gall, it will be poisoned and die. We don't have a way to directly poison the Eastern Barbarian people with fish gall, but they can use mercury rain to injure our soldiers, so can't we also use fish gall rain to injure their people? Let them taste the taste of fish bile rain once they breathe our fish bile rain, can cause poisoning symptoms. "

"How exactly are we going to implement the plan?"

We don't have a windmill, but we can use the iron balls to lure the fish gall bladder out, and then shoot arrows through the fish gall. Let the gall bladder spill out, and unintentionally, the soldiers of the Eastern Barbarian will breathe in the air that contains the fish bile and cause the symptoms of poisoning. "Su Yun said.

"So, you prepared a new mask to prevent your own people from accidentally inhaling the bile rain?"

"Hmm, although the mask can't be completely useful, it can at least play a great role in protecting him."

After Qi Yu finished speaking, Feng Qingmo was silent for a moment, then said: "Alright! We will do as you say! — You being able to think of a way to defeat the enemy in such a short period of time is truly rare and precious. When the army returns to the capital, I will definitely report it to Royal Father and ask for your merits.

Qi Yu said: "I do not need any rewards. If you really want to ask for meritorious service for me, you should help me arrange my future life properly!"

Feng Qingmo said in a low voice: "Don't worry! I will keep my promise. "

Outside the window, two guards were silently patrolling back and forth in the courtyard. However, no one noticed the silhouette of a person who had been standing quietly behind a pillar for a long time.

While the two guards were swapping positions, that person quietly stuck to the wall and left without a sound.

"Is what you said true?" In Xiao Ran's room, Xiao Ran was somewhat shocked to hear his subordinate's report.

"Yes, my lord. I heard it clearly. Although their voices were lowered, I am sure I did not hear a single word wrong."

"They actually want to use fish gall as a weapon …" Xiao Ran gasped, and slowly sat down, "I never thought that she would have such a method, this Princess Qi, is truly scheming!"

"Yes, it sounds like Princess Qi wants to ask for a promise from the Crown Prince. Maybe the Princess Qi wanted to ask for the promise of the Crown Prince, that's why she offered up the fish gall to the Crown Prince."

"Got it." Xiao Ran nodded his head, frowning, his expression solemn, completely unlike the respectful and flattering attitude he displayed in front of Feng Qingmo and Qi Yu. He raised his head and cautiously whispered to his men, "Did anyone find any trace of you?"

"No one had noticed that the crown prince's house had always been relaxed, with only two guards standing guard. Perhaps he did not expect anyone to come and eavesdrop on him."

"Alright. However, everything still needs to be done with caution."

"Yes, my lord. This little one will remember that."

"You should continue to observe the crown prince's movements. As for the Princess Qi, you should also pay attention to them, however, it is best to observe from afar. Princess Qi is smarter than others, don't let her see anything. "

"As you wish, my lord."