Sure enough, as his friend said, the work is indeed not tiring, he only needs to work for six hours a day, and no one monitors him when he rests and eats.

It was only three weeks later that he saw his two friends, and he was looking for an opportunity to say a few words, but as soon as he opened his mouth, he was stopped by the watchman on one side - there was also a strict rule here, that is, no gossip with each other.

In the fourth week, the six of them got together again.

The purpose of bringing them together is to close the cylinders and complete the final procedure.

The finished lock cylinder is very strange, even the well-informed Lao Li has never seen this kind of lock, and its principle is similar to the chain lock used in ancient times.

After the cylinder is made, the key is made according to the drawing.

Among these people, Da Lao Li has the best skill in making keys, and it is said that he should be the main one in preparing the keys, but who knows that two days later, the black-faced man asked him to quickly clean up, saying that his task was completed.

The eldest Li was full of "100,000 whys", and he didn't dare to ask the reason, so he had to leave with a stomach full of doubts.

He still took the boat first, then the car, and the whole process was as if he was in a dark room, and he couldn't see the outside scene.

In fact, at this time, Da Lao Li didn't dare to think about the reward, he only prayed to be able to go back alive, which was lucky!

Who would have thought that after getting out of the car, the black-faced strong man threw him a wrapped black bag, telling him that this matter could not be revealed to anyone, otherwise the consequences would be unimaginable to him, and then he got in the car and left, and when he returned home, the old man Li was shocked into a cold sweat, and quickly opened the black bag, which turned out to be a pile of yuan, and the count was 15,000 yuan.

At this time, he was both happy and afraid.

About a week later, he received another call from the two friends, who told him that they wanted to drink together in the evening, which was to see them off, and he asked his friend if he was going to go away! The two friends said that they would emigrate abroad and leave next week.

They were the only ones who drank together at night.

Seeing that there was no one around, Da Lao Li mentioned the incident again, and one of his friends was so frightened that he quickly covered his mouth.

Tell him in a low voice that he must never mention this matter again, even if it is the person closest to him, otherwise he will ......

The friend didn't say the next words, just shook his head slightly.

He never saw these two friends again, and more than twenty years had passed.

Elder Li paused here and took a sip of water, as if pulling himself back from his distant memory, and his face immediately returned to his previous indifferent expression.

When he saw the keys two weeks ago, he decided that they had made them twenty years ago, because he remembered the keys on the drawings very well.

Speaking of which, Hao Minyuan interrupted him.

"Master Li, isn't it a key with a lock! You...... How do you know which cylinder matches which key? ”

Elder Li smiled: "Don't you know, this kind of key is not the same as our common key, but a batch of keys to open a batch of locks, in addition to the fact that it can no longer be prepared." ”

Hao Minyuan nodded: "You mean, there are only two ways to open this box, one is to destroy the box, but to find the key to open the secret lock cylinder?" ”

Da Lao Li nodded: "In addition to these two methods, no matter how powerful the locksmith is, he can't open this lock." ”

I thought about it for a while, and I still told me about going to Wang Yujue's house with Wu Yuhui that night to find a strange key.

I told Hao Minyuan: "The girl who let Master Li that night should be Wu Yuhui." ”

"Is it such a coincidence?" Hao Minyuan frowned.

"No, just ask her!"

Dialed Wu Yuhui's phone, and after connecting, I directly pressed the speakerphone.

"The key is still there!"

Wu Yuhui, who was on the other side of the phone, was obviously stunned for a moment before replying: "You just asked yesterday, you can't lose it!" How? ”

"I saw Master Li, the elder!"

"Oh? You...... You've been looking for him too? ”

Hearing this, everything also understood, the person who was looking for him in the mouth of the elder Li was Wu Yuhui.

Wu Jinghan has seen Wu Yuhui, it seems that they are chatting very happily, as soon as she heard that the box left by her grandfather may be opened, she also became very excited, in our eyes, the box is evidence, is a clue, but in her eyes, it is just a relic left by her parents, it is a thought.

She wanted to come with us with the box.

When I drove back to the district city again, it was twilight again, thinking about how many times in life it is a coincidence, I met Wu Yuhui in the hospital at about this time yesterday, and I am going to look for her today.

Wu Yuhui said that he was waiting for us at the police station under the jurisdiction of the People's Hospital, so we drove directly to their police station.

Zhang Lihai was also there, and it is estimated that Wu Yuhui immediately told him about it after deducting the phone.

"Master Li, I didn't expect us to meet here again!" Wu Yuhui smiled at the elder Li.

Elder Li smiled bitterly and sighed: "I didn't expect you to be a policeman, hey......"

Wu Yuhui took out the key and handed it to Da Lao Li, he took it with a solemn expression, looked at it a few times, and then walked to the black box.

With every step he took, I felt my heart hang in my throat, and I was so nervous that I subconsciously shrank my neck.

The box hasn't been opened for more than ten years, what could it be inside?

I have also analyzed before, this box is not big, it is not heavy, I can feel that there are things inside, but the contents of the box will not shake with it, so it can be seen that there must be something, just like the porcelain bowl of the box is stuffed with rotten newspapers or cotton wool.

As for what's inside, it's hard to guess.

Everyone's eyes shifted with Da Lao Li, he slowly stretched out his hand and inserted the key into the tooth hole, at this moment I was even more nervous and held my breath, the most worried was that Da Lao Li's analysis was wrong, this key and the secret lock did not match.

The moment I saw the key slowly inserted, I was nervous to the apex, only to hear a crisp sound of "pop", and the black box opened a crack.

Holy, it's on!

Several people hurriedly surrounded him, and the elder Li consciously took two steps back, he should know that his task has been completed, and the rest of the things should not interfere.

The box is a relic left by Wu Jinghan's parents, in fact, I think this may be Wu Baocai's excuse, the purpose is to prevent the box from falling into the hands of Wu Jinghan's uncle and aunt.

Of course, it was up to her to open the lid of the box.

The lid of the box was slowly lifted, and I first saw that the box was surrounded by a circle of black and gray things, which looked like the fur of some animal, and in the middle was a stack of yellowed brown paper envelopes, which seemed to be several, each of which was bulging.