The inside of the Heaven and Earth Treasure House is very dark, but with Zhang Xiao's eyesight, there is not much difference between it and daytime.

I have to say that although this place has a lofty name like "Heavenly Emperor's Treasure House", it looks ordinary, just an ordinary wooden house, which looks extremely empty.

In the center of the Heavenly Emperor's Treasury stood a wooden platform, half a human high, about the thickness of a baby's arm, a round wooden pillar connected to the ground, and a small platform about the size of a foot was supported at the upper end.

In the middle of the platform, there is a clumsy cup that looks like it is made of wood, and if you look closely, you can see that the whole wooden platform and the cup are completely connected together, and the trees underground.

But the most attractive thing is the thing in this small wooden cup. The wooden cup was about three inches high and two inches wide, and in the middle was a transparent liquid, and floating on top of the liquid in the cup was a small transparent stone, which was flat on five sides and crystal clear. It is from this stone that a soft light is emitted, forming a semi-circular light curtain on the small wooden platform, refracting various colors of light and emitting it to the surrounding area.

In the air, there is a strange aroma, which is everywhere, and the smell of it makes people feel refreshed.

Zhang Xiao naturally knew that the things contained in this cup were the immortal medicine that was rumored to be hidden by the Emperor of Heaven, and this wooden platform and wooden cup were all connected with the strange tree under his feet, and the elixir was preserved with the eternal aura contained in the tree itself.

He sniffed the aroma with his nose, and suddenly every cell of his body burst into a cheer for him to drink the cup of the elixir.

Zhang Xiao even clearly felt that as long as he drank this cup of elixir, then he could directly break through the last bottleneck of the "Demon Refining Chapter". Reach the terrifying realm of "Becoming a Demon".

"The origin of life" is in Zhang Xiao's heart. Suddenly, these four words poured out.

Although Zhang Xiao coveted this cup of magic medicine, Zhang Xiao stubbornly resisted this temptation. Because he knew that in addition to the elixir, there was something equally precious in the Heavenly Emperor's treasury.

That is the third volume of the Book of Heaven.

If Zhang Xiao swallows this cup of magic medicine now, then he will enter a state of transformation, and may even fall into a state of stupor, then it is very likely that he will miss the birth of the Book of Heaven.

The magic medicine is already in his mouth, so he naturally won't be in such a hurry and waste the opportunity.

In the past ten years, Zhang Xiao has been in addition to healing. is constantly studying "Book of Heaven" with Zhang Xiaofan, this supreme method.

Originally, Zhang Xiao's understanding of the "Book of Heaven" was quite shallow, although the theory of the "Book of Heaven" was the same as the theory of the Demon Dao he cultivated, and they both paid attention to it, "Heaven and earth are not benevolent, and all things are used as dogs", but in terms of specific cultivation methods, he will even get stuck on some of the most superficial theoretical elaborations.

Fortunately, there is also Zhang Xiaofan by his side.

Although Zhang Xiaofan's cultivation is not deep. But the foundation is extremely solid, and he has his own opinions on the "Book of Heaven", and Zhang Xiaofan is a demon and a Buddha. Because of the cultivation of the three doors of the Tao, his exposition of the Book of Heaven contains Buddhism. The theory of Taoism is of great benefit to Zhang Xiao's cultivation.

Of course. Zhang Xiaofan's harvest is not much less than Zhang Xiao's, Zhang Xiao dares to assert. If Zhang Xiaofan was willing to devote himself to cultivation, at most sixty years, he would be able to cultivate to the point of soaring in the day.

Therefore, for Zhang Xiao, the third volume of the Book of Heaven is really not to be missed.

Therefore, Zhang Xiao waited quietly like this, waiting for the third volume of the Book of Heaven to be born.

Sure enough, after a while, in the dome of the entire Heavenly Emperor's Treasure Vault, in that golden dazzling light, suddenly, that mysterious voice sounded, as if chanting why, golden words the size of a bucket appeared one after another in the air under the golden light:

Heaven and earth are unkind, and all things are used as dogs!

After a while, these nine words slowly disappeared, but the mysterious chanting sound became louder and louder, more and more prosperous, and in an instant, the dazzling golden pillar of light suddenly burst out, blazing towards all the space of the Heavenly Emperor's Treasure House, on the surrounding walls, under the golden light, one by one golden characters appeared in the air, the gestures were vigorous, as if they were flying.

Compared with the first and second volumes of the Book of Heaven, the content of this third volume is more obscure and incomprehensible, making people puzzled, although in the past ten years, Zhang Xiao has almost studied the first and second volumes thoroughly, but there are still several incomprehensible meanings.

However, Zhang Xiao didn't ask for much understanding, just memorized it by rote.

For him, the most important thing is the cup of miracle medicine.

Zhang Xiao slashed hard with his hand, and directly pulled the wooden cup off the wooden table below, full of a cup of magic medicine, the juice was crystal clear, like amber, flowing with an intoxicating fragrance, which made people intoxicated.

Then Zhang Xiao drank it all.

Although the magic medicine smells very fragrant, but when you drink it, it tastes as light as water, perhaps this is the truth that things must be reversed.

As for the small stone in the center, it was also directly chewed by Zhang Xiao, and then swallowed.

Zhang Xiao naturally didn't care about their taste, but quietly waited for the transformation of his body.

This time the transformation was different from usual, Zhang Xiao's body did not feel the slightest pain, nor did it feel like a fairy-like comfort, it was like drinking a cup of hot water, just warming his body a little.

After realizing this, Zhang Xiao was not surprised, he didn't expect that the value of the magic medicine was more precious than he imagined, he could feel that the medicinal power kept penetrating into every cell of him, not only letting each of his cells undergo a deep transformation, but also slowly some dark injuries and hidden dangers on his body.

Compared with this way of "moisturizing things silently", the medicinal properties of the essence of those divine beasts that were devoured by him fell to the lower level, after all, although the essence of the divine beast is good, but it is too domineering, although it can make Zhang Xiao's body transform, but there are very serious consequences, if it is not for Zhang Xiao's strong strength, he can completely refine the essence of these divine beasts, if it is an ordinary person after devouring the water unicorn, he may become a water unicorn, if he devours the yellow bird, then he will also transform into a yellow bird.

And although this cup of magic medicine is a little slower, but it is extremely gentle, not only does it not have the slightest trouble, but it has endless benefits, Zhang Xiao even doubted that this cup of magic medicine was not prepared by the Emperor of Heaven for his heirs, after all, its effect is too amazing, as long as you absorb about two layers of medicinal effects, you can make up for your own shortfall, you can break through the "Demon Refining Chapter", cultivate into the "Demon Chapter", and officially step into the "True Demon Realm" , and the remaining medicinal power will still accumulate in Zhang Xiao's body, giving Zhang Xiao endless benefits in the future.

Of course, it is precisely because of this that the effect of this medicinal power is a little slow, according to Zhang Xiao's estimate, if he wants to break through the "Demon Chapter", he will have to wait for at least three months.

But thinking about it, he didn't seem to have much to do recently, so he simply sat cross-legged and stayed quietly in the Heavenly Emperor's treasure house, waiting for the final transformation. (To be continued......)