I took a closer look at the stone walls on all sides of the passage, and the whole was smooth, but there were some deep scratches, which seemed to have been ground out by the human body, and there were some dry blood on them, which showed how desperate and helpless these people were before they died.

The flesh and blood of these bones had been completely corrupted, and there was not even any residue to be seen, but this place was obviously closed, how could it be so completely corrupted? This only shows that these people have been dead for many years.

The long knife in the underworld was brought here by Li Jinkai more than two hundred years ago, but these bones have definitely existed for more than two hundred years, and these people cannot all be killed by Li Jinkai, and none of them were killed by Li Jinkai, and even Li Jinkai They don't know that there is such a place.

I reached out and touched the scratches on the stone wall, an ancient breath of vicissitudes sinking into my fingers, and at the same time the torches slowly went out due to the lack of oxygen. I also stopped breathing with oxygen and continued to stay here with the fetal breath method.

I summoned a base ghost to land beside me, and began to observe the scratches on the rock wall through its perspective.

The scratches were clearly not carved by the dead here, as there were no metal weapons in the piles of bones, and clothing could be corrupted, but tools that could carve scratches on the rock walls were certainly not as easily corrupted.

But there was nothing else here except the scratches on the stone wall, so these people were either thrown here for the scratches on the stone wall.

"Diyu, if you can't hold on, let go of the jade platform first, I want to study something, okay, I'll call you, by the way, throw that long black knife in for me." I said to the ground.

Di Yu snorted and said, "Then hurry up, it's weird and dark here." ”

As soon as the earth was released, the jade platform slowly closed, and before the jade platform was completely closed, the black long knife was thrown down by the earth guard.

I reached out to catch the long knife, put it beside me, and observed the situation outside through the shadow lookout array, at this time the Xuan Zi Fairy had left, and closed the stone cave outside, she took the three pieces of animal skin paper before leaving, but I was not worried, because I saw that when she left, she touched a mechanism inside, and after this mechanism was touched, she stepped out, and a stone door was slowly closed, that is, the stone door outside can be opened through that mechanism inside.

It seems that the stone that fell before was just a trick to cover the eyes.

I've been paying attention to this Xuan Purple Fairy leaving the ice lake, and directly put away the Shadow Lookout Array, leaving only a Formation Base Yin Soul to share vision, and began to concentrate on studying the scratches on the stone wall.

One of the great advantages of using the vision of the Array Base Yin is that I can control it to look around, even if it is a little far away from the top of me, I can control it to float up and check it.

It took less than five minutes, and I swept through these fine and dense scratches, and at the very top, I finally saw two words: "Jinzang!" ”

After seeing the two words of Jinzang, I couldn't help but feel a shock in my heart, because I remembered that the "Zang Zi Jue" in "Returning to Tibet" was followed by these two words, but the content behind these two words was not seen because it had not been promoted to the Inner Dan level at the beginning. When I see these two words here now, I immediately think of the "Array Collection" after the Zang character recipe in "Returning to Tibet." ”

As soon as my mind moved, I appeared in the dream bookstore in a blink of an eye, and picked up "Returning to Tibet" and turned it directly to the back of Zang Zijue, and the content behind it had already been revealed.

"The way of the formation begins in the array, originates from yin and yang, is good at the five elements, is present in things, is hidden in the invisible, and depends on the array flag ......"

Looking at these words, I unconsciously immersed myself in them......

I don't know how long it took, I suddenly woke up, the content of the array was in my mind, my heart was extremely shocked, the mystery of this array is definitely not as simple as the Taoist formation that is now said, even if it is the construction of the shadow protection array, it is only to touch the skin of the "array treasure", the mystery of it, even if I have studied it all, I can't understand one or two.

This is definitely the originator of the formation book, from the derivation of the formation to the construction of the formation system, here are very clear introduction, and the back of the formation types are as many as hundreds, and these hundreds of formations are divided into three, six, nine and so on, now the Taoist forty-nine formations and one hundred and eight feng shui formations (wealth array, seeking sub array, five ghosts and fortune, etc...) ), they are only the lowest formations, and those who can arrange these formations can only be regarded as Dao array masters.

The formation dao master is divided into one, two and three levels, that is to say, even if it is a relatively mysterious Taoist forty-nine formations, it is just a simple one-level, two-level and three-level formation, even if it can be all arranged, it can only be regarded as a formation dao master, and there are four, five or six level dao array masters behind, and then there are seventh-level eighth-level nine-level formation masters, and then behind, it is not a dao array, but an immortal array master, and my current cultivation can barely see the content of the ninth-level formation, and the content of the first-level immortal array is completely blank.

It's just that the layout of the four-level formation requires a formation flag, and this kind of formation flag is not the ordinary seven-color array flag or five-element array flag of Taoism, it is a kind of thing called "array Tibetan array flag".

After reading the introduction of these formations, I suddenly opened up as if I had suddenly opened my mind, and directly took out the letter left by my sister, I have now advanced to the Inner Dan level, and the content behind the letter seems to be visible, and the content behind the letter left by my sister is not a map at all, but has some connection with those scratches on the stone wall, and at the end of the letter, there is also an arrow, and there are four words written behind the arrow: Array Flag.

There are annotations on the letter, and combined with these annotations, I seem even more excited, it turns out that those scratches on the stone wall are actually a huge formation diagram carved out, and the pattern left by my sister is hidden in it. And the text annotation left on my sister's letter is the key to opening the formation pattern on the stone wall. I even thought that the reason why my sister left a letter in the book house was entirely for the sake of those hidden array flags.

After nearly an hour of memorizing those locations, I left the Dream Book House and began to control the Yin Spirits to find the opening position to open the formation map on the stone wall.

"Big brother, it's been three days, what are you doing?" The sound of the earth was weak from above.

I was shocked, I was actually immersed in the "array collection" for three days, but I was relieved to think about it, at least now I have learned a lot about the formation, and the first, second and third level formations have been mastered by me, and even the fourth-level formation I have touched some fur.

"Wait, I'm studying the Dao Array." I dropped that sentence and went out, and began to look for the exact location of those starting points.

According to the signs and order left in my sister's letter, in less than half an hour, I had already found the location of the dozen or so starting points, and threw a punch at each starting point in turn.

After a dozen dull sounds, the ground suddenly sank, as if the passage had been opened, and all the bones fell. I reached out and grabbed a convex stone at the bottom of the passage, hanging over it, I wasn't sure how deep it would be after it was opened, so I didn't dare to fall directly with the bones.

What made me both happy and speechless was that after this passage was opened, it was only two or three meters deep below, and I was glad that there was no danger, and I was speechless that I still couldn't get out of here, but then I became excited again, because on the stone wall of the first layer below, I saw many array flags that were only two fingers wide.

These array flags are surrounded by black smoke, and it is obvious that they are the array hidden array flags mentioned at the end of my sister's letter, and with these array flags, as long as I am given enough time, I can slowly arrange the formations above the fourth level, and the formations above the fourth level are more mysterious than the shadow protection array, and the role naturally does not need to be said, almost all kinds of Dao arrays are included, including all kinds of trapped formations, killing arrays, defensive arrays, Juyuan arrays, Juyin arrays, and so on.

I reached out and grabbed all the array flags, there were as many as twenty-four, and each one had a text pattern carved on it, a bit like an oracle bone inscription, although I didn't know all of them, but I could remember the characteristics of each one of them.

What's more, the material of these array flags seems to be more mysterious than the material of the black lost and found long knife in the underworld, it is obviously a real thing, but it gives me an ethereal feeling, as if it is condensed by yin qi or a gas that is more difficult to see than yin qi, without any weight, but it is a real physical object, as if there is spirituality, I even feel that these things can be refined like the yin soul of the formation base and can be directly communicated with my mind.

I can do it when I think of it, but before I can do it, I need to get out of here.

"Diyu, push away the jade platform, I'm going out." I said, grabbing the long black knife in my hand.

After Di Yan pushed the jade platform away, I jumped with enough internal qi and jumped directly outside.

"Big brother, are you out?" Since there was no light in it, the earth could only feel the fluctuations of the air.

I hummed, took out a spirit beast pill and threw it into Di Yan's mouth, swallowed a Bigu pill myself, subconsciously glanced at the location of the stone gate, and was just about to start refining those "Array Hidden Array Flags", my eyes suddenly lit up, and I said happily: "I see!" ”