Lin Han carefully opened the wooden planks on the wooden box. There were a lot of sponges inside as padding, and an iron box lying in the middle.

But the box was rusty and covered with barnacles, so dense that it was terrifying.

It can be seen that this thing has been lying on the seabed for some years, but what Lin Han cares most about is that there is a Kongming lock on it.

It is said that the Kongming lock was invented by Zhuge Kongming during the Three Kingdoms period based on the principles of Bagua metaphysics. It is also known as "Bie Men Gun", "Liu Zi Lian Fang", "Mo Nai He", "Nan Ren Mu", etc. It does not use nails and ropes, but relies entirely on the connection and support of its own structure, reflecting the wisdom of the ancients.

Kongming lock, also known as Luban lock, is called the same thing despite different names.

The Kongming lock in front of him had obviously been tampered with. A lot of the iron stick had been pulled out, but it still hadn't been unlocked.

After all, this thing is difficult to solve without some brains.

So the unintelligent people used other methods.

There were traces of welding around the gaps on the lid of the iron box, and a hole in one corner was pried open with a crowbar. It was obvious that someone was trying to force it open with a welding gun and a crowbar.

Seeing these methods, Lin Han couldn't help but sneer in his heart.

Others are smart enough to use an iron Kongming lock as a lock. Don’t they think that others will break it open with violence?

We will definitely think of some ways to deal with the thugs.

Those who died probably died because the defense measures in the box were triggered, but Lin Han didn't know the reason for their death yet.

But anyone with a discerning eye can see that it was definitely caused by the hole that was pried open.

In a sealed box, the gases and substances inside undergo chemical reactions for many years, and many of them will turn into poisonous gases or toxic substances.

So Lin Han wore a mask as soon as he came in.

But after a few days, it should have evaporated and dissipated in the air.

Lin Han carefully reached out and grabbed the Kongming lock, observing and fiddling with it.

He was glad that those people had some brains and did not destroy the Kongming lock, otherwise there would be no way to unlock it.

But this thing can be unlocked in many ways depending on the wooden blocks inside. If you make a mistake, you have to start all over again, which is very cumbersome.

It is better to say that it is used to measure people's blood pressure than to measure their IQ. It is rumored that Kong Ming invented this thing to take revenge on Zhang Fei.

This thing can be considered an antique, but it is the first time that Lin Han has handled it, and this gives him a headache.

"What's wrong?" Yueying's worried voice came from the door.

She couldn't help it after seeing Lin Han standing next to the crate for a long time without moving.

"Kongming Lock, do you know how to unlock it?" Lin Han looked back at her, pursed his lips, and asked awkwardly.

He didn't really expect Yueying to know how to solve it. Who would be so bored as to play with something like this?

However, Yueying's answer surprised and delighted Lin Han.

"I know! People used to give me this thing as a curio, and I would play with it when I was bored. I have one in my office!"

"Then come over and try it!" Lin Han, overjoyed, quickly called her over.

As expected of a member of the Treasure Appraisers Association, he has touched so many things, so he can be of great help!

Although she was confused after hearing this, she still walked over. After seeing the Kongming lock inside the wooden box, she understood.

Yueying held the Kongming lock in both hands, looked at it for a few minutes and then began to untie it, pulling out the iron bars one by one, adjusting the positions, and finally turning her hands, countless iron bars flew out due to the centrifugal force.

"Awesome!" Lin Han, who was standing by, was stunned and couldn't help but applaud Yueying and the wisdom of the ancients.

After the iron bars of the Kongming lock fell to the ground, only the last iron bar was left on the keyhole. Yueying gently pulled it out, and the lid of the iron box popped open by itself.

But at this moment, a black gas gushed out from inside. After a closer look, Lin Han understood what it was.

There is another iron box inside the iron box, and there is a gap on the four sides of the two boxes, and the black gas is spewing out from inside.

That is the defense of this iron box. It is not only used to deal with people who open the box violently, but also to deal with people who have the ability to open the Luban lock but do not know the defense measures!

This is double insurance!

It is not difficult to see that there is some black powder in these gaps, and the powder was brought out when the top of the iron box popped open!

Lin Han was fine, as he was wearing a mask, but Yue Ying wasn't, and she thought she was fine, so she came over, and Lin Han made the same mistake with her.

I thought there would be no more traps after the traps!

"Ouch~" Although Yueying covered her mouth and nose, it was too late. Her eyes suddenly widened, and blood flowed out of her nostrils and through the gaps between her hands that were covering her mouth and nose.

The next second, Yueying fell backwards. Seeing this, Lin Han quickly supported her and held her hand to check her pulse.

His pulse was disordered and his breath was weak. It was obvious that he had been poisoned. It was a very strong poison that took effect instantly. The blood vessels in his neck had turned purple and black.

Lin Han quickly carried Yueying away from the cabin. After closing the door, he took out three Hua Tuo gold needles and locked the acupuncture points on Yueying's neck to prevent the toxin from continuing to invade. Then he used the gold needles to bleed her and guide the poisonous blood out.

After the bleeding was released, because the blood flow was blocked, Yueying's brain was deprived of oxygen, her face turned pale, and she had difficulty breathing.

But now Yueying still has her eyes open, her consciousness is blurred, but gradually becoming blurred.

Seeing this, Lin Han didn't care about anything else and immediately gave Yueying artificial respiration.

Ten seconds later, Yueying suddenly woke up, turned over and coughed continuously, then breathed heavily.

But when she breathed, she remembered what Lin Han had just done to her, and she turned her back to Lin Han and didn't dare to look back.

Even though she knew that Lin Han was giving her artificial respiration, it was still embarrassing.

"Hmph!" But at this moment, Lin Han coughed lightly behind her, followed by a dull sound of his body falling heavily on the iron deck.

"Bang!"

After hearing this, she immediately realized that something was wrong and turned to look at Lin Han. Lin Han's neck was now purple and black. Yueying knew that Lin Han must have been poisoned as well.

Although Lin Han was wearing a mask just now, as long as the powder is small enough, it can still pass through the mask. However, the amount inhaled is small, so Lin Han's poisoning is relatively shallow. But as time goes by, she is not much better than before.

"Mirror! Mirror!" Yueying thought of how Lin Han had saved her just now, so she quickly took out a makeup foundation box from her bag and opened it. There was a small mirror inside.

She understood that if Lin Han couldn't see his neck, he would definitely not be able to use the gold needle to target the acupuncture points.

Sure enough, it was at this time that Lin Han took out the golden needle, looked at the mirror, pressed the acupuncture point with his left hand, and inserted the golden needle with his right hand.