Ling Han naturally didn't trust Xu Xin at all, so he immediately opened the cloth, and inside it was indeed a black box, which was by no means a metal material, but wood, exuding a faint scent of sandalwood.

He was inspecting the box, and Xu Xin was naturally also inspecting Tsukidan, and neither of them spoke.

Sure enough, it couldn't be opened.

It's not that it's locked, but that the lid is so tightly closed that there's nowhere to use force, and it seems that it can only be smashed open by violence.

Ling Han looked surprised, because he recognized the wood.

Tongyuan Heartwood.

This is a very precious material, which is characterized by two characteristics, one is toughness, and the other is the ability to lock in the loss of aura. Therefore, this is the most suitable for collecting some precious medicinal materials, as long as they are closed, they can be protected for thousands of years or even 10,000 years.

He shook it, there was something in it, and judging by listening to the movement, it should be only one item, a very heavy feeling, but if it was specific, it was impossible for him to judge.

"Little brother, sister, thank you!" Xu Xinjiao said with a smile, and put away the jade bottle with great satisfaction. Although she also wanted to know what was hidden in the wooden box, and knew that it must be a treasure, she had been studying it for many years, and she had tried all kinds of methods but couldn't open it, so she simply handed it over to Ling Han, so as not to keep her worried about it, out of sight and out of mind.

Ling Han ignored her and made her bored, but because she was in a good mood, she didn't take it to heart and pushed the door out.

As soon as she left, Ling Han directly stretched out his hand and wiped it, and the wooden box entered the Black Tower, he did not enter the Black Tower for the first time, but got up to leave. Since he has entered the Black Tower, it is destined to be his belongings, and no one can take them.

He returned to his own courtyard at the academy. Close the door and enter the Black Tower.

Put the words in a past life. With his cultivation in the Heavenly and Human Realm, it was naturally easy to open the box made of Tongyuan Heart Wood, but the cultivation of the Yongquan Realm was far from enough, otherwise Xu Xin would not have been able to take this box for so many years?

However, in the Black Tower, Ling Han is a god!

As soon as his mind moved, the wooden box opened, as easily as flipping over his hand.

Inside the box, there is a piece of jade, in the shape of a strip. As soon as the box was opened, a rich fragrance came out, which lifted his spirits, and the pores of his whole body were about to open.

Ling Han showed a look of excitement, this is not jade, but ointment, a hundred poisonous jade ointment!

"I didn't expect that there was such a thing!" he reached out and pressed it, and all the aromas were pressed back into the wooden box, and he could control everything in the Black Tower. Like a god.

The Hundred Poison Jade Paste is not naturally formed, but is made up the day after tomorrow, and requires the use of up to a hundred kinds of poisons, plus seven-spice jade. Formulated with a secret method.

It's not poison - whoever wants to poison someone with it is a waste.

If these hundred poisons were used alone, even the powerhouses of the Flower Realm could be poisoned. They can be put together and blended together in a wonderful proportion. Toxicity will restrain each other and turn poison into good medicine. The more toxic it is, the more abundant this energy will naturally be.

But if anyone eats like this directly, it is definitely a dead end, because hundreds of poisons are mixed together, and the energy that bursts out is too terrifying, and it is trivial to support the Shenghua Realm to death.

But with the addition of the Seven Spice Jade, the furious energy can flow out in a smooth manner, so that it can be absorbed.

Of course, the hundred poison jade paste is not used to eat, but to be smeared on the body, and enter the body through skin absorption.

The beauty of this lies in the fact that if the cultivation is high, you can wipe more, and if the cultivation is low, you can wipe less, which can be used by people in different realms to improve cultivation and enhance the body, which is an extremely precious treasure.

Poison is easy to find, but the seven-spice jade is too rare, that is, in the previous life, he had a lot of resources in his hands, but he only allocated it once, and the amount was not as good as the current one.

Such a treasure really needs to be locked with Tongyuan Heart Wood, otherwise the medicinal power will soon evaporate, and it will not even be able to be preserved for a month.

I don't know who it is, it's such a big deal, it's a big waste to bury the Tongyuan Heart Wooden Box and the Hundred Poisons Jade Paste together.

"It's just cheaper for me!" Ling Han said with a smile, taking off his clothes and starting to smear the hundred poisonous jade paste on his body, a cold feeling came to him, making him feel comfortable all over.

"Feng Yan seems to have a big grasp, and he is confident that he can beat me in ten days, thinking about it, his reliance should be able to break through within these ten days. After all, the great realm is a threshold, and it is much worse to cross it. ”

Ling Han sat down cross-legged while running the Five Elements Heavenly Extreme Skill to absorb the medicinal power, and in the Black Tower, he could even lock the volatilization of the plaster and completely act on his body, ensuring that there was no waste at all.

It's amazing, and the 100% absorption of medicinal power is simply terrifying.

"There are only ten days of martial arts, and it is impossible for me to break through to the Spirit Sea Realm in such a short period of time, but if my strength can be improved, I will improve a little, and I am determined to win the Eye of True Vision. ”

In just a moment, Ling Han felt that his whole body was hot, the medicinal power had already taken full effect, and his skin seemed to be torn, and the pain was incomparable.

"Damn, no experience, wipe too much. "He was holding his teeth, although he had prepared a hundred poisonous jade ointment in his previous life, it was for his four apprentices, and the weakest one of the four at that time was already in the Shentai realm.

Now that he had weakened his weight, the Yongquan Realm was too far from the Shentai Realm, and it still made him cry out.

Fortunately, he cultivated a rock body, not only with amazing defense, but also able to lithify, cut off the pain, and under the active operation, the pain disappeared immediately, but it was visible to the naked eye that his skin was cracked one after another, and blood seeped out.

He was in amusement, thinking that it was fortunate that he hadn't smeared it in that crucial place, otherwise he would have really cried by now.

Boom, there was a powerful flow of energy in his body, pushing the spring to expand continuously, spewing out a surging Yuan force.

Almost three hours later, Ling Han stopped, the ointment applied to his body had been completely absorbed by him, and his cultivation had been promoted to the late stage of the fifth layer of Yongquan, according to this, by the day of the martial decision, his cultivation should be able to reach the eighth layer of Yongquan.

"The eighth layer should have the strength to fight against the Spirit Sea. Ling Han nodded, his situation was special, and his combat power far exceeded the realm.

The wounds on his body were quickly healed, and he summoned clean water, washed the blood on his body, and put on his clothes.

The tiger girl didn't come to pester him today, but stayed in the black tower honestly, Ling Han opened his divine sense and swept it, it turned out that this girl was actually impacting the Yongquan Realm.

The five or six-year-old Yongquan Realm is staggering to think about. (To be continued......)