The female ghost only appeared for a short moment, and when Xu Rui saw her clearly, she suddenly disappeared out of thin air.

However, it was just hearsay before, at most it was some specious traces, and it was already creepy, but this time everyone saw the female ghost with their own eyes, even if it was only a short moment, it also caused an extremely strong impact on everyone.

Several officers of the Criminal Department were so frightened that their faces turned pale and trembled, and even Liu Haofei, who had never believed in ghosts and gods, changed his face and his heart was shaken.

Xu Rui gently patted Liu Haofei's back: "Lord Liu won't really believe that it's a female ghost, right?" ”

"Everyone is watching, seeing with their own eyes, is there still a discrepancy?"

Liu Haofei came back to his senses and asked suspiciously, and it could be seen that his face was still deeply uneasy.

"What's wrong?"

Xu Rui was about to explain, when several brocade-clothed guards rushed in, and when they saw that everyone was pale, they asked suspiciously.

The officer was stunned for a moment and asked, "Didn't you see anything in the courtyard when you came over?" ”

The Jinyi guard headed by him was stunned: "What's in the yard?" We came all the way and didn't see anything! ”

Several officers were shocked, and I don't know who shouted: "They can't see it, but we can see it clearly, ghosts, there are really ghosts!" ”

Although the rest of the officers did not scream, they were also frightened, and the brocade guards looked at everyone in shock when they saw this scene.

The atmosphere in the room was instantly solemn to the extreme, if it weren't for the presence of two Shangguan, I'm afraid they would have fled long ago.

At this moment, Xu Rui suddenly burst out laughing, and the frightened crowd suddenly looked at him in confusion.

Liu Haofei seemed to think of something, and asked in a deep voice, "Lord Xu, what do you see?" ”

Xu Rui laughed slightly, pointed to the corner of the west of the courtyard and said, "If I guessed correctly, the ghost is there!" ”

"What?!"

Everyone was stunned, several errands were already frightened, and naturally they didn't dare to go out to find out, and a few brocade guards who rushed in didn't see the so-called female ghost with their own eyes after all, and when they heard that this was magical, their hearts were also aroused a little curious, and they immediately turned around and went out and ran in the direction Xu Rui pointed out.

"There's something!"

After a while, the brocade guards ran back with a palm-sized object.

Everyone frowned when they saw it, only Liu Haofei's face changed, and he looked at Xu Rui in shock.

Because the status of the messenger and the Jinyi guard is too low, it is not strange that they have not seen that thing, only Liu Haofei has seen it with his own eyes in Tianbao Pavilion, and the palm-sized thing is nothing else, it is the mirror made by Xu Rui.

Xu Rui spread his hands and said, "Don't look at me like that, all the mirrors have been sold, not to mention that Lord Liu picked up a knife at the scene of the crime, you can't suspect that the blacksmith is the murderer, right?" ”

Liu Haofei smiled bitterly and shook his head, he was shocked by the female ghost just now, and he was in a trance, and there was no teenager at the critical moment to calm down, and he was really ashamed in his heart.

"When you take the mirror, is it facing the north wall?"

Xu Rui asked in a deep voice.

The brocade guards nodded: "What the adults said is exactly right. ”

Xu Rui smiled: "That's right, if my expectation is right, there should be a few more mirrors like this in the corner near our room!" ”

When he first saw the female ghost on the wall, Xu Rui was also startled by the lifelike ghost.

But the white wall behind the female ghost made him instinctively think of something, and that was the curtain used in early film screenings.

In this era, it is naturally impossible to achieve holograms, but as long as you use that white wall as a curtain, and then use the imaging principle of film film, you can project images not far away onto the white wall.

The so-called female ghost is probably a shadow puppet the size of a palm, so now you can find the true source of the image by following the mirrors used for the reflection, and the only way to reflect the light source to the angle of the north wall is the location of the room to the southeast.

"I'll look for it!"

Liu Haofei naturally didn't know what Xu Rui was thinking, but when he heard Xu Rui say that there was a mirror in the corner, he also understood that all this was likely to be a trick, so he immediately rushed out of the room, and several errand servants hesitated for a moment but still didn't dare to follow.

Xu Rui is not in a hurry, according to his speculation, the murderer should have completed all the tasks, and now there is a chance that he has left, but they don't have so much time to deal with the clues left behind in full view, this is the opportunity to solve the case.

However, after waiting for about the time of Xiao Xiangxiang, Liu Haofei walked back with a blushing face and shook his head at Xu Rui.

"I didn't find it, I searched the side where this room is."

"What?!"

This time it was Xu Rui's turn to be surprised, he didn't say a word, he hurriedly rushed out of the room, carefully searched along the corner of the wall, and sure enough, as Liu Haofei said, there was nothing.

Xu Rui frowned, could it be that he guessed wrong.

Liu Haofei chased after him with a few brocade guards, and said in a deep voice: "Lord Xu, it is not trivial for the witnesses in this case to be killed in front of everyone, and this official plans to personally go to the prince and Lu Shangshu to explain this matter."

Whether it is a female ghost or not, the Tang Mansion is no longer safe, and please go back to the house first to avoid any further accidents. ”

Xu Rui shook his head: "Let's not be busy first, let's go check the study again." ”

"Study?"

Liu Haofei was slightly stunned, and then remembered that Xu Rui had raised suspicions about the study before the female ghost incident, but he didn't have time to say it because he was interrupted by the sudden incident, and he suddenly became interested.

"Master Xu thinks there's something wrong with the study?"

Liu Haofei asked.

Xu Rui called Liu Haofei and walked towards the study, and said: "The study is too clean, think about it, if this study is yours, why don't you even have a written note?" ”

Liu Haofei suddenly said: "Yes, the study book is the most private place, and the scholars' poems, books and official documents are all in it, even if they are clean, they will definitely leave a lot of handwriting, how can they clean the floor spotlessly, not even a piece of used paper!" ”

Xu Rui nodded and said: "So I think that study is just a trick, there must be a secret room in the study, Tang Jiuguang must treat the secret room as a real study on weekdays, and the so-called female ghost is probably in this secret room!" ”

As soon as these words came out, Liu Haofei was suddenly shocked, and hurriedly summoned a team of brocade guards to rush into the study to check again.

Under the watchful eyes of Xu Rui and Liu Haofei, the Jinyi guards searched very carefully, they were originally experts in raiding homes, and the corners where the officials hid money and secrets were already familiar to their chests, but they searched for a whole cup of tea, but they didn't find the slightest.

As the brocade guards shook their heads one after another, Liu Haofei's brows furrowed deeper and deeper, and his gaze at Xu Rui gradually changed from convincing to suspicious.

Xu Rui's face was not good-looking, but he didn't care about Liu Haofei's face, he just stared at the book and only the cabinet for a long time.

First of all, this study has a set of two Huanghuali bookcases, since Tang Jiuguang is short of money, why only sell one? You must know that the price of a set of bookcases sold separately is much lower than buying them together, and he will suffer this kind of loss as a household servant?

Secondly, Xu Rui noticed that there were some scratches on the bottom corner of the wooden board under the bookcase, and there was absolutely no possibility of being rubbed by other items in that position, and the only reason for the scratches was that the wooden board itself could slide, and nine times out of ten it was the entrance to the secret room.

But when he pushed and pulled the plank, it didn't move, and it was nailed to the bookcase.

Xu Rui didn't give up, and asked the brocade guards to move the bookcase open, revealing the floor below.

However, the floor below was really solid, and there was no trace of the secret room at all.

Doesn't the Chamber of Secrets really exist?

Just when Xu Rui began to doubt himself, he suddenly noticed that there seemed to be some strange marks on the floor, as if the water stains had been dried, and the traces were very shallow, and they couldn't be found without looking closely.

"It's ......"

Xu Rui squinted his eyes and looked carefully at the trace, and a flash of lightning suddenly flashed in his mind.

"Lord Xu, have you found anything?"

Liu Haofei asked, although this was quite polite, but there was no previous expectation, it seemed that he only asked when he saw Xu Rui's strange appearance.

Xu Rui smiled bitterly and shook his head: "No, maybe I was too tired today to make so many oolongs." ”

Liu Haofei's face flashed with a burst of disappointment, and he arched his hand at Xu Rui and said: "Today's matter is indeed dangerous, this official can't delay any longer, he must immediately explain this matter to the prince and Lord Lu, otherwise if they are asked by the saint, they will be very passive." ”

Xu Rui arched his hand and said: "My lord, please take care of yourself, the next official will go back to the house, and I will comb through it again tonight, hoping to find some clues." ”

The two of them were busy with their own affairs, and after ordering the Jinyi guards to strengthen the garrison, they left the Tang Mansion together and parted ways.

On the carriage, An Ge asked Xu Rui puzzled: "Young master, have you really seen a female ghost tonight?" ”

Xu Rui shook his head and didn't speak.

It wasn't until the two of them returned to Liu's Mansion and closed the door that Xu Rui sneered: "Actually, I already know the location of the secret room and the techniques of the female ghost, but I can't say it." ”

"Why can't you say that?"

Ange Daqi.

Xu Rui's eyes narrowed slightly: "Because the murderer is still in the Tang Mansion, if Fang Cai says it, I'm afraid I won't be able to come back!" ”