In smooth water!

The expected danger did not appear, Tang Yin was already in the secret room, but everything was as it was, but he did not relax in the slightest.

After all, the whole secret room is not small, and he has only just stepped into it.

Syllable!

Tang Yin threw a fist-sized stone he had just picked up forward, and the stone rolled forward with a clatter.

There was no sound other than the sound of stones!

Although this method does not completely eliminate the danger, it is also a very effective method, and the place where the stone passes is generally safe.

Boom!

The stone rolled all the way over, until it hit the opposite shelf before stopping, Tang Yin cautiously walked over, picked up the stone, and threw it in the other direction, until the stone hit the opposite wall, and did not trigger the expected killing mechanism.

After repeating it many times, it was confirmed that it was safe to avoid it, and Tang Yin breathed a sigh of relief.

"You can come in, there's no danger. Tang Yin told Su Wanwan.

Then he began to check, and soon found out how the bookshelf was moved, it turned out that the formation he found last time was the formation that opened the bookshelf, although it was only the simplest and most basic formation, but for people who didn't understand the formation, it was just an ordinary pattern.

"This is a simple yin and yang compound array, even if you don't understand the formation, as long as you have the corresponding formation as the key, you can easily open it!" Observing the formation patterns on the bookshelf, Tang Yin quickly studied and understood that for those who understand the formation, there is no need for the corresponding formation as a key at all.

"Are these all left by grandpa?" Seeing the dozens of antiques in the secret room, Su Wanwan's eyes turned red again.

Seeing things and thinking about people, when she saw these antiques, she thought of her grandfather, who had left her forever, and would never see her kind grandfather again.

"That's right!" Don nodded.

After entering the secret room, Tang Yin always had a question in his mind, using the secret room to preserve antiques is a bit of a fuss, right?

Because the antiques kept in the secret room, although they are already of extraordinary value in the eyes of ordinary people, 100 million is nothing in the eyes of the rich.

There are many ways to do this, and there are many ways to do it better and safer than the secret room.

Hey?

When removing a vase, Tang Yin found that the wood texture under the vase was a little strange, and it seemed that some of them were not naturally formed.

Formation!

After observing for a long time, Tang Yin finally recognized it.

Very similar to the formation in the study, it is a simple activation formation, like the start switch on a household appliance.

"Evening, you go to the study first, I'll activate the formation and try it......" After studying it clearly, Tang Yin was worried that there would be danger.

"You must be careful!" Su Wanwan nodded and obediently retreated to the study.

Activation!

Tang Yin injected some power into the formation pattern, and the formation was immediately activated.

How to input power?

Of course, it is internal qi, and there are also those called internal force, or yuan qi, yuan force, true yuan, which are called all kinds of things, and even each sect is different, and the east and west are also different, which is called magic power in the West, or fighting spirit.

However, from a modern scientific point of view, these different names refer to the same thing, which is the free energy in the body.

It's just that the way of using it is different, the form of expression is also different, and the effect is also very different.

Special people like Tang Yin and them, whether they are practicing martial arts or cultivating other secret methods, when they cultivate to a certain level, a kind of energy will be generated in their bodies, an energy that can be freely controlled, which can be stored in the dantian or other parts of the body.

And most of the various advanced secret techniques need the support of special energy, just like the formation, it cannot operate without energy support.

Tang Yin also stepped into the four-star powerhouse before he generated free energy in his body, and Lingguan Dao called this energy internal force.

Swish!

The formation was activated, and Tang Yin jumped up for the first time and jumped from the living room in the secret room.

As he jumped out, the antique shelves moved, revealing the flat wall behind them, and then there was no movement.

Formation?

Although the exposed wall was flat, it was painted with a beautiful mural, but Tang Yin could see the problem at a glance.

It's not an ordinary mural, there is a formation contained in the mural.

The array is divided into many grades.

The basic one is also the lowest level, which is to use various precious materials to form a circuit for energy flow and form a formation.

A little more advanced is to make special pigments and use special pens to draw energy circuits to form formations.

A more advanced one is to draw a formation out of thin air, without the help of any materials, but to use the energy in one's own body to draw a formation circuit outside the body.

And the highest-level formation is the Heart Array!

What is a Heart Array?

It is to use a strong will to set up the formation, but according to the classic records in the Lingguan Dao sect, those who can draw the formation with a pen should be a very senior formation mage, and those who can draw the formation out of thin air are all the pillars of each sect, which is rarer than the current giant panda.

Among the various sects, it is very good to have one or two formation mages who draw formations out of thin air.

As for the Heart Array, there are indeed people who can reach it!

However, according to the classics, often in each era, the formation mage who can reach this height can be called unique.

And now the formation on the wall is a slightly more advanced one, drawn with a special pen.

And Tang Yin can't do this now, what he can do now is to use special materials to arrange the formation, and it can only be a low-level formation.

"Did you find anything?" When he observed the formation in the mural, Su Wanwan stepped forward and asked.

"There is a formation in the mural, which should not be an offensive formation, but a protective formation. Tang Yin came to a conclusion, but there were many doubts.

What exactly is the formation in the mural to protect?

What could be protected with a precious formation might not be an ordinary thing, he couldn't guess.

But he can be sure of one thing, the real purpose of all the antiques in the secret room is to be a cover, to cover the things that the formation in the mural is meant to protect.

Using antiques worth nearly 100 million yuan as a cover, it can be seen how valuable the things to be protected are.

"Can you open it?"

"You can try!" Tang Yin nodded, although he couldn't reach the point of using a pen to form a formation, it didn't mean that he couldn't try to break the formation.

Usually, it's much easier to break a formation than to set it up.

It's the same in real life, it's often very difficult to do something, but it's often easy to make it fail.

Got it!

Later, Tang Yin found the node of the formation, the formation can be compared to a circuit, the current passes through a certain route in the circuit, producing a specific function, if you want to build a new circuit, it may be difficult, but destroying this circuit is a very simple matter.

For example, if you sprinkle a few drops of water on it and short-circuit two adjacent circuits, you may burn the entire circuit board.

Boom!

There was a loud bang, and a strong wave of qi was generated, causing Tang Yin to take three steps backwards and almost hit the antique shelf behind him.

He just used a knife to cut off the line of the formation node, so that the energy in the formation could not flow smoothly.

Formation collapse!

"Will it explode?" Su Wanwan in the living room was taken aback, but soon calmed down, after she met Tang Yin, the original world view had collapsed, and she saw many things that she didn't think existed in the past, such as martial arts that flew off the eaves and walls, such as various ghosts.

Now that there is one more formation, she already has some immunity.

"It's not an explosion, it's just that when the formation collapses, some of the energy that escapes, the real formation explosion, the power will be very amazing, and it will blow up the entire villa!" Tang Yin replied casually, the formation actually had energy flowing, of course there would be an explosion.

Just like just now, one of the paroxysmal energy circuits he chose to cut off, if he chose it wrong, it would cause the formation to explode.

"Is it actually a composite formation?" The formation was cracked, the original mural disappeared, and a new mural appeared, a new formation.

Tang Yin suddenly frowned!

The formation that appeared in the second one was more difficult than the first formation, and the ability to protect was stronger, but it also made him more suspicious.

The tighter the protection, the higher the value of the things that are protected.

"I'm going to see what is hidden behind it today?" Tang Yin began to crack the second formation, but before he started to crack it, he transferred all the antiques to the study, just in case of a little accident, he destroyed the antiques of amazing value.

Rumble!

The second formation was broken, and there was also energy dissipation.

Although Tang Yin was prepared, he was still able to take seven or eight steps backwards, until he hit the antique shelf behind him, and smashed the shelf.

Fortunately, the antiques have been transferred, otherwise it would not only be the shelves that will be broken, but also the antiques on the shelves.

"Are you hurt?" Su Wanwan immediately rushed in regardless of the danger, looking at Tang Yin, who was taking pictures of the sawdust on his body, his face full of concern.

"It's okay, you don't have to worry, I'm a four-star powerhouse, and my body is strong!" Tang Yin patted his chest.

As a strong person, of course, he will be different from ordinary people.

Every point of strength increases, the body will become stronger, and the process of strength growth is actually a process of life evolution.

It's just that this kind of evolution is not easy to come by, and only a very small number of people can do it, and the vast majority of people don't even know it.

"Why don't we give up?" Hearing Tang Yin's comforting words, the worried look on Su Wanwan's face still did not dissipate.

Although she also wanted to know, behind the magical formation, what was left behind by Grandpa?

But compared with Tang Yin's safety, she felt that Tang Yin's safety was more important, although Tang Yin was not injured, she persuaded Tang Yin to give up.

"Don't worry, if it's really dangerous, I'll put it down for the time being!" Tang Yin didn't want to give up yet.

He was a little embarrassed now, but not to the point where he was injured, after all, the broken formation was protective, not attacking.

"Okay, but you have to promise to give up as soon as there is danger!" Seeing that Tang Yin could not be persuaded by it, Su Wanwan could only retreat.

"I promise!"

After making a guarantee, Tang Yin was able to continue, and after the second formation was cracked, a third formation appeared.

"Not very good...... Seeing the third formation, Tang Yin's expression was solemn, compared with the first two formations, the third formation had a counterattack function.

Maybe the last line of protection will add the ability to fight back.

If it can't be cracked perfectly, once the formation breaks out to attack, with Tang Yin's current ability, it is likely that there will be unpredictable dangers.