Along the way, there was a gentle breeze, and Su Shi walked slowly to the study.
The door to the study room was ajar, and from time to time there was a conversation coming from inside, but the conversation was very low, and even if you tried hard to listen, you couldn't really hear it.
Su Shi stood outside the door for a while, then composed himself, opened the ajar door and walked in.
Zhou Jin, Qin Nan and Chen Xiaolan were chatting casually. When they saw Su Shi pushing the door in, they stopped talking and looked at him with strange expressions.
Their looks made Su Shi feel strange. He stopped and couldn't help but ask, "Why are you looking at me like this?"
Zhou Jin and Chen Xiaolan's faces turned slightly red, especially Zhou Jin, who had a guilty conscience and no longer dared to look at Su Shi, so she could only look at Qin Nan.
Although Qin Nan also looked shy, her relationship with Su Shi was different from others, so she did not avoid Su Shi's questioning gaze and said softly: "Just now we heard from Brother Lin that you came back very late yesterday, so we didn't rest well."
"Don't listen to his nonsense." Su Shi said casually: "It wasn't Haishi when I came back, how could I say it was very late."
"But you left the library before the end of the day yesterday."
Zhou Jin and Chen Xiaolan looked at Su Shi again because they also wanted to know where he had been during the past two hours.
Su Shi also understood what they meant at this time, but he did not answer them immediately. Instead, he sat down silently, thought for a while, and then looked up at Zhou Jin.
"Did anything special happen in the palace yesterday?"
"I haven't heard anything special happened." Zhou Jin thought about it carefully, shook her head slightly, and then stared at him again: "Why do you suddenly ask this question?"
"Really?" Su Shi was a little surprised: "After the purple smoke rose, was everything in the palace really normal?"
"Maybe the other party is still planning." Zhou Jin muttered: "I have already reported this matter to my father, and my father has also strengthened the security in the palace. It is not that easy for the other party to cause trouble in the palace."
There was a hint of worry in Su Shi's eyes, and he couldn't help but sigh: "But I can feel that their plan has already begun to be implemented."
Zhou Jin's face changed slightly: "It has already been implemented? Why do you feel this way?"
Su Shi smiled bitterly and said, "I just feel this way, but the annoying thing is that my feelings are rarely wrong."
Qin Nan suddenly said from the side: "In fact, as long as we find the person hiding in the palace, everything will be solved easily."
Zhou Jin shook his head and sighed: "My sister doesn't know something. In the palace where you can see the fireworks of Guangdu Temple, there are thousands of eunuchs, maids, guards and servants, so it is impossible to investigate. Even those who are more suspected, the secret The guards have searched back and forth to no avail. Trying to find the person hiding in the palace through limited clues is undoubtedly like looking for a needle in a haystack."
Qin Nan looked at Su Shi hesitantly, but Su Shi had no expression. Qin Nan hesitated to speak, but finally remained silent.
However, Zhou Jin saw something different in Qin Nan's expression, as if he knew something, but also seemed to have some scruples.
Since it was about his father's safety, Zhou Jin would not give up and immediately asked, "Does my sister know something?"
Qin Nan didn't answer her, but couldn't help but glance at Su Shi again.
Now even if Zhou Jin is blind, he can see that the person Qin Nan is worried about is Su Shi. Although Zhou Jin doesn't know why, he can't help but look at Su Shi with doubt.
Naturally, Su Shi could no longer sit firmly on the Diaoyutai. He forced a smile to Qin Nan and said, "Just tell Her Royal Highness what you think of."
Qin Nan still seemed a little hesitant: "Will it ruin your plan?"
Su Shi held his head with one hand and looked a little helpless: "My mind is already in a mess right now. I don't have any plans."
Qin Nan asked in confusion: "In that case, why didn't you tell Her Highness the Princess?"
Zhou Jin stood aside as if listening to a book from heaven. At this moment, he couldn't help but ask: "Tell me what?"
"Master Su should already know who the spy is lurking in the palace."
Qin Nan's words were like a bolt from the blue. Not only Zhou Jin looked shocked, but also Chen Xiaolan looked at Su Shi in disbelief.
"Really!" After Zhou Jin was shocked, she still looked at Su Shi in disbelief. Then she felt something in her heart and looked at Qin Nan: "My sister also knows?"
Qin Nan said slowly: "I also came to my senses when I returned to the mansion last night and remembered Mr. Su's words."
"What words?"
"Regarding the purple smoke, Mr. Su asked Her Royal Highness the Princess a question yesterday. How many times was the purple smoke set off?"
Zhou Jin nodded involuntarily: "He did ask this question."
Qin Nan looked at Su Shi: "You must have the answer in your mind by then."
Su Shi had no choice but to explain: "That was just my guess, so I didn't say it out loud."
Qin Nan smiled sweetly: "After I returned to the mansion, I thought about it carefully and I think your guess is probably correct."
Seeing Qin Nan and Su Shi still playing riddles with each other, Zhou Jin felt a little sad for no reason, but she couldn't care less at this time and asked hurriedly: "Do you really know who the spy is lurking in the palace? "
Seeing that Su Shi had no objection, Qin Nan said slowly: "Although it is clever to use strange-colored smoke to communicate, there are also drawbacks, that is, how to let the spies in the palace see it."
Zhou Jin wondered: "The strange smoke rises into the air and can be seen as long as you raise your head. How can this be a disadvantage?"
"Her Royal Highness the Princess once said that the purple smoke did not exist in the sky for long. How could the person who set off the purple smoke guarantee that the spy would be able to see the purple smoke at that moment?"
"Everyone in the palace has their own affairs. It is impossible to stare at Guangdu Temple all day long to see if there is any strange smoke rising. If the strange smoke rises, the spy may have left the palace to do business, or is on duty in the palace, or is in the palace. How could he see the strange smoke while he was resting in the house?"
Zhou Jin pondered: "When the strange smoke rises, someone will always see it, and then spread the word to each other, and it will naturally reach the ears of the spy, so he can know about the strange smoke burning in Kuangdu without seeing it with his own eyes."
Qin Nan shook his head gently: "First of all, most people have become accustomed to the incense lingering around Guangdu Temple all year round. Even if there is strange smoke rising, it is just a temporary novelty and may not be spread everywhere. Furthermore, the information conveyed by strange smoke It must be urgent, and relying on word of mouth to confirm information is never reliable. If what they hear is wrong, aren't they afraid of causing trouble?"
Finally, Qin Nan came to the conclusion: "So if you want to use strange smoke to convey a message, one way is to burn the strange smoke multiple times over multiple periods of time to ensure that the spies in the palace can definitely see it. But the purple smoke was only set off once, It can be seen that the other party did not use this method, so only the last resort is left."
"What means?"
"No matter when the strange smoke rises, the spies lurking in the palace will definitely be able to find it, and only one of them can do this."
