At night, Yuchi Mingyue looked at Yuwen Wen with a vigilant look on her face, and Yuwen Wen was squatting in the corner of the wall, carefully studying a small cabinet.

This small cabinet is called "Safety Cabinet". It is now a container used by "financial director" Yuchi Mingyue to store books and valuables. It is made of fine iron, heavy and sturdy.

Safety cabinets are now commodities. There are several time-honored brands in Huangzhou and Chang'an that are specially made and sold. Safety cabinets are expensive, but they are well received by the market: Such safety is really important for rich people.

If traditional locks cannot be protected from flying thieves at all, and those locks that cannot be opened without a key can only be made by skilled craftsmen who are hard to come by. Then, a "produced by regular merchants" safety cabinet with clear price and quality that is worthy of the price will naturally become a hot-selling product.

The safety cabinet used by Yuchi Mingyue is the latest product last year. It is impossible for anyone to crack it technically, but she looked at Yuwen Wen like a rat surrounding the rice jar, with bad intentions about the safety cabinet, and was anxious and sent someone to ask for help from her sister without hesitation.

My brother-in-law must have been confused by someone and wanted to take away my financial power!

Yuchi Mingyue thought so, and she was anxious.

It wasn't Yuchi Mingyue's sleeping service tonight, but Yuwen Wen suddenly ran to her bedroom and said he wanted to see the safety cabinet. Yuchi Mingyue felt uneasy and thought that danger was coming, so she could only go and bring rescue soldiers, that is, ask her sister to come to save the scene.

Now, Yuwen Wen squatted on the ground and asked Yuchi Mingyue to sit or stand. At this time, Yuwen Wen suddenly spoke: "Si Niang."

Yuchi Mingyue answered nervously: "Hey?"

"Where is the password?"

Sure enough, I want a password! What to do!

Yuchi Mingyue was shocked, so anxious that she didn't know what to do. There was still some time before her sister arrived, so she had to delay as much as possible: 'Uh... I'm thinking about it...'

When Yuwen Wen saw his sister-in-law/the concubine frowned, he suddenly felt pleasing to the eye, but his focus is not this: "No, let's look at the means of husband!"

Yuchi Mingyue saw him take out a stethoscope from the bag he brought, put the earpiece on the edge of the turntable scale password lock in the safety cabinet, and then twitch the turntable while listening carefully.

The turntable scale password lock is the latest lock and is widely used in safety cabinets. For thieves who only know traditional locks, if they do not know the password, this lock cannot be cracked in a short time by technology.

Of course, brute force cracking is another story.

As the "co-inventor" of the turntable scale password lock, Yu Wenwen is very clear about the flaws of this password lock, that is, there will be subtle sounds when the turntable rotates, and when it turns to the correct position, the sound will be different.

Once this different sound appears, it means that the current turntable has reached the correct number. Then, you can try the second password number until all passwords are tried out, "unlock" the lock, and open the safety cabinet.

These sounds cannot be heard by ears alone, so you need to use a stethoscope.

However, even with a stethoscope, untrained people still can't hear it. However, this is not a problem for Yuwen Wen: He has practiced it.

Moreover, today he opened the safety cabinet that Chen Jae thought was foolproof, and now it is no exception.

"Showing skills" in front of his beloved woman is Yuwen Wen's little childish temper. He also wants to show off his skills in front of Yuchi Mingyue, so he ran over excitedly and wanted to surprise the other party.

Time passed by minute by minute, and sweat beads of water oozing from Yuwen Wen's forehead. He had tried his best to "listen" and the turntable circles and circles, but he could not hear any abnormal noise.

It seems that the surprise cannot be given.

Putting down the stethoscope, Yuwen Wen wanted to admit defeat, but was almost shocked by the scene in front of him: there were two Yuchi Mingyue in front of him.

When I looked closely, it turned out that one was a sister and the other was a sister.

"Why is Sanniang coming too?"

Yuwen Wen got up, sat on the couch, and Yuchi Chifan, who came to rescue the emergency, held back his anxiety and asked, "Why did Erlang think about checking the accounts?"

"Check the accounts? Why do I want them..." Yuwen Wen looked at the two sisters and suddenly came to his senses: "Well? Is Si Niang guilty and dare not let her husband check the accounts?"

Yuchi Mingyue asked for help from her sister, so she naturally leaned on her sister to smooth things over. Yuchi Chifan smiled and said, "Si Niang thought her husband wanted to take away the account book, but she couldn't stop him. She could only ask the concubine, the sister, to be a witness."

"Testimation?" Yuwen Wen felt inexplicable.

"Well, this account book cannot be left easily. After all, Mingyue is in charge of the account and the responsibility is heavy. If the account book is transferred back and there is a mistake, then Si Niang cannot bear the responsibility."

This is the so-called "financial system". Yuwen Wen could understand it. Seeing that Yuchi Mingyue misunderstood her and invited her sister to be a rescuer, she felt funny and waved her hand:

"Hey, I just want to give Si Niang a surprise and crack this safety cabinet so that Si Niang knows that the safety cabinet will be updated very quickly, and important information such as the account book must be stored in the latest safety cabinet."

‘This is not a surprise!’ Yuchi Chifan thought so, but Yuwen Wen sometimes feels like a child’s whimsical imagination, which really makes her feel warm in her heart.

She looked at the still intact safety cabinet, then sat beside Yu Wen Wen and said in a hint: "So, Mr. Yu, why is the door of this safety cabinet still closed?"

"Well...."

Faced with Yuchi Chifan's teasing, Yuwen Wen was not upset, but soon got into the role and made a puzzled statement: "The master of flowers, this cabinet has a great background, and it seems that it has used the Mohist mechanism, and it has not been clear for a while."

Yuchi Chifan, known as the "Flower Master", also thought: "Oh? I heard that the Mohist mechanism has been lost for hundreds of years. How can I use it in this brand new safety cabinet?"

"The Flower Lord doesn't know what it is. Now the imperial court has promoted the way of machinery. Countless talented people and strangers have returned to the world, showing off their skills, and made various exquisite machinery and utensils. Among them, it would be reasonable if there are descendants of the Mo family."

"What should I do?" Yuchi Chifan frowned, "This cabinet contains important things. If it cannot be taken out and handed to the emperor in time, the world will probably suffer a lot."

Yuchi Mingyue saw her sister and husband (husband) like this, and almost burst into laughter, covering her mouth, and laughed: "Okay, my husband wants to open the cabinet, I just want to open it."

She walked towards the safety cabinet and untied a key from her belt that looked like a tube, which made Yu Wen Wen stunned when she saw it: "Key? Isn't it a password?"

"whee..."

Yuchi Mingyue shook the key in front of Yuwen Wen, without saying much, came to the safety cabinet and inserted it in an inconspicuous place on the side with the tubular key. Yuwen Wen was speechless when he saw this.

But Yuchi Mingyue twisted the key, and with a "click", the front door of the safety cabinet with a turntable scale password lock was gently opened.

Yuwen Wen looked closely and found another small door inside, with a turntable scale password lock on it.

He was full of doubts in his heart, walked to the safety cabinet, looked at the first door carefully, and after a long time, he almost cursed.

‘Damn! This first turntable scale password lock is fake!’

‘Deliberately forming a misunderstanding of thinking, making people focus their attention on this fake lock, and ignore the lock on the side that is opened with a key!’

‘No wonder I couldn’t hear any abnormal noise after listening for so long!’

‘Which old brand is the safety cabinet! Isn’t this a cheating thief...’

‘Yes, isn’t the safety cabinet just trying to find a way to cheat the thief…’

Yuwen Wen found out that he was actually caught and was amused and laughed. He originally wanted to give Yuchi Mingyue a surprise, but the other party gave him a surprise.

He pinched Yuchi Mingyue's cheek and asked, "Si Niang, I saw that she was sweating profusely for her husband just now, so I didn't remind me."

"Husband didn't ask..." Yuchi Mingyue said, hugging Yuwen Wen's arm, her cheeks flushed, and her eyes became blurred, "Husband was so abrupt that both my concubine and my sister were frightened."

Feeling, frightened?

Yuwen Wen heard the implication. Yuchi Mingyue's obvious teasing made him feel angry and rush, but it won't work tonight because this is a "cross-cutting" behavior and cannot be tolerated.

Yuwen Wen was about to crack down on Yuchi Mingyue's "offensive", but he heard a report from an eunuch outside that the Ministry of Works said that there was an urgent report.

There was an urgent report on this night, which shows that it was indeed very urgent. However, it was not the Ministry of War’s urgent report, but the Ministry of Works’ urgent report. Yu Wen Wen was a little puzzled about this.
Chapter completed!