This method of identification is made by using a peculiar herb and strange insect powder, and the ratio of herbs and strange insect powder can be arbitrarily adjusted. As long as the dispensing is complete, you can put this proportion of the powder on the skin of your clothes.

In the eyes of anyone, it is the same as usual, but if you soak the powder in water and drink it, you will see the mark of the powder sticking to it within three hours. Looking at these powders from a distance, people who have drunk the potion will see a little bit of fluorescence.

However, there are many kinds of this kind of blending ratio and drug insect powder, and even if the proportion of the ratio is slightly different, the effect is lost. So it's an extremely effective way to identify friend and foe in the dark.

However, the fact that they had approached the area where the vanguard was lurking and saw nothing was unusual. But now that they are still far away, the two teams are worried that they are mistaken, and want to confirm it a little further ahead.

But death haunted them along the way.

Although the warning cannon was in his hand, those masters of Qin Juncypress's ambush were all strong and energetic people. At almost the same time, the killers of those "exquisite stones" came out of the shadows.

The six good players of the Yanyu Building in Jiangnan were either instantly pierced by the blade, or their necks were twisted by heavy hands, not only did they not send out those warning fireworks, but they couldn't even shout.

It's just because the people who are in charge of the operation outside are all masters of the "Linglong Stone", and this time they poured out of the nest to keep the most critical secret of the secret passage of transporting troops.

Xu Fei and Xia Aiqing were unaware of all this.

At this time, the ability to be too high and strong has become a burden, if these two people are also discovered by the "Linglong Stone", they will not be able to succeed when they come to sneak attack. The two of them will also know that the matter has been leaked, and it is not appropriate to explore it again in the case of scaring the snake.

In this way, the main hall of Centipede Street can get out safely, but now the two of them have infiltrated the Taishi's mansion without realizing it. Caught in layers of encirclement.

This Taishi Mansion is a garden mansion that has been passed down for generations, and was once a royal palace a few decades ago. Later, this garden mansion was rewarded to the prime minister, and it was used as the prime minister's mansion, and then the location of the prime minister's mansion was changed, and this eventually became the location of the Taishi's mansion.

Because of this experience, the possibility of a secret passage for transporting troops here has greatly increased. This secret passage for transporting troops can only be passed down from generation to generation by royal blood, and this was once the royal palace, so it is possible to transport soldiers through here. But the cause of the emperor's death forty years ago was a sudden illness, and he had already returned to heaven in less than half an hour.

Therefore, the big secret of this imperial bloodline is likely to have been completely broken off at that time. The traitorous party didn't know from what channel they got this news recently, it's really incredible, Xu Fei and Xia Aiqing are going to find the answer in this Taishi Mansion tonight.

Because the Taishi Mansion used to be the emperor's palace, the garden was built very exquisitely, and for this reason, the grass and flowers in the courtyard were abundant, and there were many pavilions and pavilions that could cover the hidden positions. And Xia Aiqing's mechanism skills are extremely proficient, and those mechanisms in the garden are like child's play in her eyes.

Xia Aiqing was now hiding behind a bamboo forest, while Xu Fei wrapped his body in a shadow and hid on the roof of the pavilion.

These two places are on high ground and have a wide view, so that you can see almost the whole of the garden. Xia Aiqing hid in the shadow of the bamboo forest, secretly observing the layout and structure of this garden, and the more she looked, the more she felt that there was a hidden mystery in the construction here.

According to the topography and structure, many places in the garden should have a simpler and more reasonable construction method, which is more in line with the principles of civil engineering, and will be more elaborate in feng shui. But now it doesn't seem to be the case, and there are a lot of places that feel like it's a bit of a stretch.

This was once the emperor's palace, and the design and construction must be a first-class skilled craftsman, and he would never make such a mistake. If the construction is not exquisite enough, it is a big taboo for those places that do not conform to Feng Shui, and such mistakes can even be said to offend the imperial authority and can be condemned to mistakes.

Since it has been built in this way, there is only one answer, that is, the design of this garden was approved by the imperial power. And the reason why it was built like this should be a last resort, all of which makes the existence of the secret passage for troop transport more reasonable.

Under Xia Aiqing's eyes, the pavilions, flowers, and trees in this garden all became like insignificant things, and they were excluded from his mind. The only thing to see is the topography of this garden, the direction of the water veins. This information is gathered into one, and the mystery of it is slowly revealed.

Xia Aiqing said in a very low voice: "This garden is strange, there must be a mechanism under the lotus pond, and the position where it is opened is also underwater. I'm afraid that once the mechanism is opened, the water in the lotus pond here will be diverted to other places, and it will definitely alarm the thieves. ”

Xu Fei looked at this lotus pond, the emperor's palace is really extraordinary, and the lotus pond in the general garden is a small water area that can be crossed by a nine-curved bridge. However, this lotus pond is extremely vast, and there is also an arch bridge across this water. There is also a small boat tied to the edge of the lotus pond, which can be used for boating on the water.

I don't know where the mechanism is in such a large body of water, and if the secret passage is really hidden under the water, then the water from this lotus pond will inevitably flow to other places before it is opened. How can such a big movement be concealed from people, is it going to be a failure tonight?

But having come to such a close position, Xia Aiqing has already seen the mystery again, how can she give up halfway like this, the so-called artist is bold.

Xu Fei said in a soft voice: "Sister Xia is here to watch the wind, I will go into the water to investigate, if I can open the mechanism, open it and enter the exploration." If you have the chance, you can destroy it by manipulating the earth and then go out through the exit. Sister Xia took advantage of the chaos to return to report the news, I don't know what that organ looks like?"

Xia Aiqing pondered for a while, and replied in a low voice: "There are many kinds of settings for this mechanism, so it's hard to speculate, but if I set up the opening mechanism, it will be right to use the method of water manipulation to open it according to local conditions." The mechanism of the water method is generally in the form of various water beasts, and when it is urged by strong energy, it will spray water to drive the mechanism. ”

As soon as Xia Aiqing finished speaking, Xu Fei had already slipped down from the ceiling on the pavilion, sticking to the ground like a shadow forward. When the moonlight was bright, Xu Fei's body used the method of manipulating the earth, integrating his body with the ground, and moving according to the position he had planned in advance.

After changing three or four kinds of energy in this way, Xu Fei was only three feet away from the lotus pond, hiding behind a flower and tree, and the silence around him seemed to have a problem with his ears.

Xu Fei took a deep breath, and his body had turned into soft water, flowing silently from this flower and tree into the lotus pond.

In just a short moment, the various energy transitions were extremely smooth, and there was no delay at all. In this Taishi Mansion, under the strict monitoring of many "Linglong Stone" masters, they broke through layers of defense and reached the most critical place.

At the moment of diving into the water, Xu Fei's eyes were like torches, and he saw clearly that there were no Ying Qi pills set up around, which showed that the water here was often emptied and could not be arranged, otherwise there would be many Ying Qi pills hidden for defense.

But even so, in order to prevent accidents, Xu Fei still dissipated his energy after sinking to the bottom of the water, and just used his water nature to move. Under the moonlight, the underwater scenery is faintly recognizable, and sure enough, as Xia Aiqing predicted, there are no aquatic plants under the water, but it is extremely refreshing and empty.

The remnants of the loads were tied to floating objects, floating on the surface of the water to hide people's eyes, but the bottom of the water was a very flat stone floor. Upon closer inspection, it is a circular carved area with a gap in the middle.

Xu Fei's body swayed slightly, like a swimming fish diving into this gap, a little touch, only to feel that this gap could not be inserted even if it was a piece of paper, it seemed that there was something else below. Looking around again, it was indeed surrounded by a circle of water beasts, with different shapes and lifelike.

There is also a gentle slope leading straight to the edge of the lotus pond at the bottom of the water, and the gentle slope is connected to the circular stone gate in the center of the water, which should be convenient for the carriage to come out of the stone gate and drive directly to the land.

It's just that there are so many water beasts, which one is the mechanism that opens the stone gate?

Underwater, the breath is already a little suffocated.