That night, Lu Yu didn't sleep all night, and at midnight, he ran to the roof to try to "see the ghost", but as a result, he really saw the ghost.

Ascending high and looking into the distance, he was "shocked" to find that the mass grave in the southern suburbs of Taiping Town, in the middle of the night when the dark clouds covered the moon and he couldn't see his fingers, actually looked a little "brightly lit".

After all, it is a place where the dead are buried, and absolutely no one dares to go there at night, so it stands to reason that the mass grave at midnight should be dark.

However, Lu Yu saw that the strange place, like an open-air treasure house with countless gems, radiated a ray of light to the surroundings.

That scene instantly shocked Lu Yu a little dumbfounded, and he almost rolled off the roof.

You must know that Lu Yu at this moment, but the "half-crippled person" who just woke up from a deep coma half a day ago, if he falls from the roof again, then he who is already half-crippled may really be completely crippled.

Fortunately, Lu Yu suddenly woke up from the shock, he subconsciously hooked the ridge of the roof with his long arms, and constantly inserted his feet into the gaps between the roof tiles, and after kicking several tiles in a row, he survived the embarrassing dilemma of slapping his face on the ground in the middle of the night.

After finally stabilizing his figure, Lu Yu, who was just ten years old at the time and still had a childish look on his face, breathed a sigh of relief, and then he set his eyes on the mass grave in Zhennan again.

Looking at the white light and purple light that kept pouring out there, Lu Yu couldn't help but sigh with emotion: "What is said in the "Ghost Sutra" turns out to be true, different ghosts really emit different colors of light!" ”

It turned out that the ten thousand heroic lights that shot out from the mass grave in the south of the town actually came out of the ghosts, this kind of ghost light is invisible to others, and only Lu Yu, who has practiced the "Ghost Trick" Eye, can see it.

The content of the first part of the "Book of Ghosts" clearly states that the ghosts between heaven and earth, due to their different types and strengths, under the gaze of the earth's eyes, the color of the light emitted by them is also very different.

The "Book of Ghosts" also says that under normal circumstances, the vast majority of ghosts in the world, according to their strength, their light colors are divided into red, orange, yellow, green, blue, purple, black, gray and white.

"The Book of Ghosts" emphasizes that the most fierce kind of ghost is the kind of crimson ghost, that is, the kind of ghost that killed Lu Yu in the previous life, the evil ghost has reached the level of emitting a crimson light, even if it is a ghost king, its strength is not even under the gods and Buddhas, it is extremely terrifying.

Of course, everything in the world is relative, and of course there are fierce ghosts, and there are weak ghosts, and the weakest ghosts are the kind of ghosts that emit a faint white light and look like ghosts, this kind of white ghosts are the ghosts condensed by the three souls and seven spirits of ordinary people after death, and they are the weakest.

Under normal circumstances, white ghosts do not stay in the human world for a long time, and as soon as they appear, there will soon be ghosts who will come out and take them away, and they will be taken to the underworld, and then reincarnated again.

After recalling the descriptions of the different colors of light on different ghosts in the "Book of Ghosts", Lu Yu, who was sitting firmly on the roof, continued to seriously look at the glory of the mass grave.

After repeated observations, Lu Yu found that in the mass grave, in addition to the white light and gray light, there were only a few purple ghost lights, not even blue ghost lights.

This means that the ghost boss on the other side of the mass grave is just a purple ghost.

Lu Yu, who has studied the "Ghost Sutra" and has long been familiar with all kinds of ghosts, knows very well that the purple ghost is the kind of ordinary ghost whose strength has just reached the level of not being afraid of the sun, this kind of ghost, although it is much more powerful than the three types of ghosts of black, gray and white, but its strength is not too strong, their ability is similar to that of ordinary mortals, and the purple ghost is not so powerful that it turns the body into reality, at most it is just to show its form and scare people.

However, the purple ghost can already walk between the heavens and the earth without eating or drinking, and is not even afraid of the sun, which is much stronger than humans who need to eat and drink constantly.

And what makes Lu Yu feel fortunate is that fortunately, he didn't find that there are ghosts above the level of purple ghosts in that mass grave, if there is a green ghost there who is only a little more fierce than the purple ghost, then the whole Taiping Town will be restless, after all, the strength of the ghost has reached the level of the green ghost, then he can materialize and kill, under normal circumstances, the fierce ghosts that harm people are all green ghosts.

On that night, Lu Yu saw the night walk of the hundred ghosts in the mass grave in the south of the town on the roof, and on that night, Lu Yu knew thoroughly that after absorbing the medicinal gas, he had already practiced the eye of the earth in the three eyes of heaven, earth and man in the "Ghost Formula", and in the future, in front of him, the ghosts could be regarded as having nothing to hide.

Although relying on the stimulation of medicinal qi, Lu Yu practiced the eyes of the earth, but with the remaining two eyes in the eyes of heaven, earth and man, Lu Yu could not practice in a short period of time.

The reason why he couldn't continue to cultivate those two eyes was also very simple.

First of all, the remaining two eyes in the cultivation of "Ghost Formula" also need the stimulation of the elixir, compared to the eleven raw materials of the elixir formula that stimulates the earth's eye, the elixir that stimulates the human eye requires two hundred kinds of raw materials, and the one of the heavenly eye requires six hundred kinds of raw materials, which is unimaginably more.

It's just that there are too many raw materials, which is not enough to completely break Lu Yu's confidence, and what makes him even more dumbfounded is that among those raw materials, there are many things similar to hell ash, and that hell ash is nothing else, it is the ash in hell.

Lu Yu knew very well that if he wanted to get something like Hell Ash, he had to go to hell, and if he wanted to go to hell, he had to die......

In addition to the reason that the raw materials are not good, another reason that hinders Lu Yu from continuing to cultivate the human eye and the heavenly eye is none other than his father Lu Long.

Since the last time Lu Yu made a "Dan pot explosion incident" during alchemy, Lu Long's attitude towards Lu Yu's study of Taoist knowledge has completely changed, in order to prevent his "stupid son" from doing something similar to the last time and disgrace himself again, Lu Long "seriously" ordered that before Lu Yu was twenty years old and an adult, he would never be allowed to read any Taoist books again, nor would he be allowed to buy anything related to alchemy, otherwise, Lu Yu's "financial resources" would be completely cut off.

As a result, Lu Yu, who was given a "tightening curse" by his father, had to temporarily give up the cultivation of "Ghost Formula", and could only focus on cultivating "Qi Cultivation Technique".

Gradually, Lu Yu's attainments in the "Qi Cultivation Technique" gradually became smaller, the spiritual power in his body became more and more powerful, and his cultivation became deeper and deeper, and he felt that before the age of fifteen, he would definitely be able to enter the foundation building period.

Later, because he was too curious about ghosts, and because he wanted to eliminate his fear of ghosts, he grew up by another year, and when he reached the age of eleven, Lu Yu, every few days, sneaked to the mass grave in the south of the town at night to practice courage, and after practicing for a year, he was basically not very afraid of ghosts.

After his repeated observation throughout the year, the situation in the mass grave was really "peeping" clear by him, and there was really "big news" there......