As for what the other party said about "the people of Stone Creek", Qin Lang had never heard of it before.

It's rare to have a lot of knowledge of mechanics and formations these days.

Qin Lang secretly wrote down the name of Master Shixi.

Confirming that the other four had gone away, Qin Lang walked out of the tree and entered a living room inside the cabin.

Through the dim moonlight, Qin Lang found that the curtains in the living room had been closed, and it was estimated that the four people had done it.

Anyway, Dongfang Aotian is dead, and this small wooden house has also become a forbidden place for the Dongfang family, even if someone inside the wooden house does something to do it, such as lowering the curtains that were originally pulled up, no one will find out and suspect it.

Qin Lang put down his shoulder bag and took out a small flashlight from it.

The light of the strong flashlight is too bright, it was prepared by Qin Lang to deal with the underground treasure hunt, and now a small flashlight can meet the lighting needs.

The things in the living room were still neatly placed, and on the surface, there were no traces of human movement, Qin Lang deliberately checked the walls, ceilings, and floors of the living room.

This is because the four people whose origin was unknown before have been carefully searched, and they have found nothing, so there is no need for them to search those conspicuous places again.

Ten minutes of busy survival, the living room found nothing.

Qin Lang entered Dongfang Aotian's bedroom from the small living room again.

He figured out the layout of the cabin, a living room, a bedroom, a study, a balcony, a bathroom, a large gym.

No kitchen, no second bedroom.

In the bedroom, Qin Lang continued to look for clues from the walls and floors.

If Dongfang Aotian really has any treasures hidden in the cabin, it should not be placed in a place like a safe, under a sofa, etc., most of them are on the wall, in a hidden compartment under the floor, or some secret room.

And to open the mechanism that opens the secret compartment of these secret rooms, the first thing is to open and close.

Most of these switches are on the walls, floors, and ceilings.

Qin Lang was looking for it along this line of thought.

It's just that the bedroom has also been carefully inspected by Qin Lang, there is no hollow place, and there is no mechanism to hide.

Generally speaking, the bedroom is the place that people value the most, and the most secrets will be hidden in the bedroom.

Now that there is nothing in the bedroom, Qin Lang is also a little suspicious, whether it is the treasure of Dongfang Aotian that is hiding in the cabin.

In the shoulder bag, the quaint key made of gold and the induction magnetic card he was carrying were placed inside, but these two things could not become direct clues.

Qin Lang lowered the flashlight, lest the light of the flashlight shine through the window and shoot outside, and then quickly walked out of the bedroom.

The next place to be searched is the study next to the bedroom.

However, Qin Lang estimated that the study would find the treasure, which was very hanging.

The more important the room, the more carefully the four people in front of them will look for it.

There are four people on the other side, and nothing has been found, which is enough to show the difficulty of exploring the cabin at night.

"Huh. ”

Qin Lang walked out of the bedroom, and when he passed by the wall between the bedroom and the study, he suddenly stopped, and his eyes fell on a meter on the wall.

It is an indoor electricity meter.

This meter is mounted on the wall, and it is supposed to look like this.

The indoor electricity meter in most residents' homes is the switch that controls the total power supply in the house, and it will be placed on the wall on the right side of the living room, but this is not dead, and some people put this orange meter in an inconspicuous place for the sake of aesthetics, so as not to occupy space.

Therefore, in Dongfang Aotian's home, it is not surprising that this indoor meter appears in the "intersection" position composed of three walls next to each other in the living room, study and bedroom.

Qin Lang stopped suddenly, not because he noticed anything strange about this meter, but because he found inspiration from the induction magnetic card.

Qin Lang pointed the small flashlight at the meter, and found that the meter was covered with a layer of fine ash, obviously no one had cleaned it for a while, and it was estimated that the four people before had automatically ignored it.

In fact, under the transparent cover of the meter, you can clearly see a row of two switches, which is normal, even if you want to hide the mystery, you can't do it.

"Both switches are on. ”

"This shows that the house is still electrified. ”

The spark that flashed in Qin Lang's mind before finally became clear.

He knew what to do next.

Qin Lang began to shuttle through the rooms, unplugging the power plugs of all electrical appliances such as refrigerators, washing machines, water heaters, and televisions, so that there were no electrical appliances or equipment in the cabin to consume any more electricity.

Then, Qin Lang walked out of the cabin, went outside, and found the outdoor meter on the wall.

In addition to the number of degrees of electricity consumed on the dashboard, there is also a turntable at the top of the meter, as long as the household is using electricity, then the turntable will rotate.

The more power consumed at the same time, the faster the turntable will spin.

Even if you use a small amount of electricity, the turntable will rotate, but it will be very slow, but there is no doubt that the turntable will not move when using electricity, after all, this turntable is very sensitive.

Qin Lang aimed the light of the flashlight at this turntable, and his eyes were firmly fixed on it.

For the first few seconds, the dial scale did not move.

It seems to be very consistent with the qiē that Qin Lang did just now.

Just now, Qin Lang unplugged all the power plugs in the cabin, and without electricity, the meter turntable naturally wouldn't move.

But soon Qin Lang noticed that the scale of the turntable moved forward slightly.

It wasn't until his eyes adapted to this change that Qin Lang discovered more clearly that in fact, this turntable had been rotating extremely lightly.

"There's no doubt about it now, there must be a place in the cabin that is connected to the electrical circuit, which is consuming electricity. ”

Qin Lang smiled.

At least now, it has proved that the idea he came up with after an idea is right, and if you follow this idea, you may find something.

Qin Lang returned to the cabin, took off his shoulder bag again, and took out the induction magnetic card from it.

Because it can be seen from the meter reading plate that the electricity consumed in a certain part of the cabin is actually very small, and it is unlikely to be used for basement lighting, insulation, maintenance of electric doors and other dangerous mechanisms, etc., after all, the electricity they consume is not less than the electricity consumed by turning on a TV in the city.

Qin Lang naturally thought of the induction magnetic card.

It is very possible that Oriental Aotian installed an electromagnetic induction device in the cabin, which relies on the circuit of the cabin to provide electricity and is responsible for the normal operation of the device.

Electromagnetic induction devices, especially especially small ones, consume almost negligible amounts of electricity!

This is in line with the fact that the dial on the meter rotates very slowly!

Qin Lang took the induction magnetic card and casually swept it over the wall, and found that it was actually really possible to succeed.

The induction magnetic card does not have to be placed in the induction slot to be swiped in order to activate the electromagnetic induction device.

If the device is hidden on the wall, you can turn on it by simply attaching a magnetic card.

Of course, there are also difficulties.

It's just that the cabin is not small, the walls and floors are also counted as the ceiling, and with a palm-sized sensor card in hand, it takes many times to go back and forth to "scan" all these places.

This amount of work is too huge.

Qin Lang turned to think about it, pretending to be Dongfang Aotian, so where would he install this electromagnetic induction device?

"Dongfang Aotian is an arrogant person, on conspiracy and trickery, he does not belong to the kind of thoughtful person, so he should take the straight path, with his temperament, he will not think a lot, most of the device will be installed in a convenient place for him to operate. ”

Simplicity is what he considers, and the easiest place is the wall at the head of the bed, because whether you are sleeping or getting up, you can reach it with your hand. ”

Of course, there may be other locations that are convenient for him, but places like the living room, balcony, gym, etc., can basically be ruled out. ”

Thinking like this, Qin Lang locked the focus of his exploration into Dongfang Aotian's bedroom and study.

The first place to check is the wall at the head of the bed in the bedroom.

Qin Lang re-entered the bedroom, began to look for it along the wall to the right of the bed, pasted the induction magnetic card on the wall, and moved it to the left.

When the induction magnetic card was swept to the right third of the bedside, Qin Lang suddenly found that the most important magnetic stripe of the induction magnetic card actually emitted a flashing red light.

This has never been encountered before.

Qin Lang was overjoyed.

Immediately afterwards, Qin Lang also heard a very low but indeed zài "click" sound from the wall where the magnetic card was attached.

The small flashlight shone up, and Qin Lang found a square wall square about the size of a palm, as if it was being pushed outward by a spring from inside, and it actually broke away from the original wall and protruded alone.

After this square was revealed, Qin Lang found that the inside was empty, specifically, there was a groove inside!

And inside the groove, there is simply a switch that closes downward!

And so it was. ”

Qin Lang didn't delay any longer, and slammed the switch that closed downwards up.

In an instant, I heard the sound of something cracking outside the window on the right side of the bedroom.

Qin Lang was shocked.

Originally, I thought that the mechanism attached to the switch was in the cabin, or even in the bedroom, but I didn't expect Dongfang Aotian to put a lot of effort into the mechanism, and obviously installed the mechanism outside the cabin.

Qin Lang immediately walked to the place where there was a cracking sound, and what caught his eye was the bottom of a stone table in the garden, and the round lid cast of cement was automatically moved to the side, revealing the black hole inside.

"No wonder the four men had almost turned the hut through and found nothing. ”

The secret room passage is installed outdoors, and the switch to open the secret room is through the guò electromagnetic induction device, which is placed indoors, and only the electromagnetic induction card can make the switch revealed.

"Dongfang Aotian has been careful to design the secret room so hidden, it seems that under the secret room, there must be treasures that Dongfang Aotian values very much. ”

It is no wonder that Dongfang Aotian wants to live alone in a cabin, and does not allow other clansmen to live nearby, so that the cabin and its surroundings become an independent kingdom, which is Dongfang Aotian's own reason.

Qin Lang knew that Dongfang Aotian's real nest was here!

Qin Lang followed a rusty iron ladder and went down to the bottom of the cave.

The bottom of the cave was very dry and well ventilated, Qin Lang changed into a strong flashlight, and the surrounding scenery immediately brightened.

Ten meters in front of the road, a door blocked the way, and after Qin Lang walked in, he found that this door was golden all over, but it was made of a large amount of glaze!

The material of the glazed door is similar to the glazed tile, but the thickness of this door is obviously very thick, so Qin Lang is sure that even if it is by violent means, it may not be able to be opened, and it may not be possible to open the door in an unreasonable way, and it will also touch the danger.

At this time, Qin Lang's other thing can naturally come in handy.

Qin Lang took out the quaint key cast in pure gold, aimed it at the keyhole and stabbed it in, and found that the size was just right, it was just tailor-made.

Click.

After the golden key rotated, this golden glazed door was opened by Qin Lang.

Inside is a storage room.

Rao is Qin Lang was mentally prepared, and because of the items that appeared in front of him, his eyes were a little straight!