He first opened Hu Dawei's space ring, and there were really a lot of things inside. There are cash, elixirs, elixirs, weapons, etc., which are similar to those in the space ring of ordinary cultivators, and the most conspicuous ones are the more than a dozen complete tiger bones stored here and a large number of tiger claws stored separately, as well as seven jars of tiger bone wine brewed from the whole tiger bones. However, to Tian Xu's regret, these tiger bones are all Chen and cannot be used to refine tiger bone glue.

The most special is a tiger's skull. This skull is larger than the average tiger head, the whole body is yellow and bright, it looks like an old antiquity, and it is often wiped and played with, I don't know what it is for. Pills and elixirs are all big road goods, and there is nothing special.

Tian Xu didn't bother to take a closer look, and turned around to look at the space containers of the other Humen disciples, the things in them were almost the same as those of Hu Dawei, and the quantity and quality were much worse. However, his luck was quite good, and in one of the space bags that he was most optimistic about, he found a small bottle of refined tiger bone glue.

This cave is good, the aura is sufficient, and there is a strange poison that can cause cerebral hemorrhage to stay outside and clean enough, so it will not be disturbed by others, which is suitable for alchemy. Tian Xu took out the Nine Xuan Furnace, took out the medicinal materials he needed one by one and put them aside, and began to refine the Heart Formation Pill.

This centering pill is a third-level pill, and it is the highest level pill that Tian Xu can refine at present, and it is complicated to operate, and it requires strong spiritual power to assist. The yin and yang formula he cultivated was originally a practice that cultivated both the body and the spirit, which was suitable for alchemy, and the process of alchemy was also the process of practicing remote control aura and formation and exercising spiritual power. Since the first alchemy, his spiritual power has improved a lot, and his ability to control the aura has also improved significantly, which has made his confidence in successfully refining the Concentration Pill also increased at the same time.

The medicinal materials were put into the furnace, Tian Xu input the spiritual energy, refined and compressed the spiritual energy, absorbed the external spiritual energy into it, and finally condensed the spiritual energy and medicinal residue into the Dan trough in the upper part of the Dan furnace, and then built a formation to lock the spiritual energy. Proceeded step by step, and finally condensed seven pills in the dan tank.

Tian Xu let out a long breath and opened the Dan furnace to take out the refined pill. Six of the seven centering pills are of the highest grade, and one of them is faintly bright, which is a super product. The volume of the centering pill is relatively large, with a diameter of about 8 mm, it is blue-green, and the color is cute.

After this period of exploration, Tian Xu already knew that the general pills can be divided into five categories: qi replenishment, consolidation, outbreak, healing, and promotion, and their colors are yellow, brown, red, blue, purple, etc., the higher the grade, the clearer the color. Generally, the color of the middle and lower grade pills purchased outside is black, and you can't tell the attribute color if you don't look carefully.

Looking at the elixir that had just been refined, Tian Xu was a little reluctant to eat it. He smiled bitterly, but still picked up one and put it in his mouth - the pill that was refined for the first time, if he didn't try it himself, he wouldn't dare to give it to Ziyan easily.

After the pill was swallowed, it did not dissolve immediately like most pills, he swallowed the pill into his abdomen, and under the stimulation of the aura in his body, the medicinal power was slowly and continuously output.

After the aura in this centering pill was released, it did not immediately merge with the aura of the body, but existed independently in the body, running with his own aura. This independent aura has its own unique rhythm, which drives his aura to resonate with its rhythm. This resonance was at a comfortable frequency, and under the effect of this resonance, he felt that the aura in his body had formed a calming effect.

It's just that this effect quickly disappeared under the effect of his Pure Heart Mantra. In order to compensate for the rapid disappearance of the effect, the Concentration Pill automatically adjusted the speed of the aura output, and more quickly output a stronger aura to drive his aura resonance.

It turned out that Tian Xu had not stopped reciting the heart-purifying mantra while refining the pill. He had to recite this heart-purifying mantra every day, especially when he was cultivating and alchemy, and he was accompanied by this heart-purifying mantra every time. Reciting the mantra has become an instinctive act of his mind, and it does not even affect his thinking, and he can even recite it silently at the same time when he is talking to others.

Tian Xu had just found out that the Pure Heart Mantra was effective for Ziyan and Aunt Zhou's injuries, so he didn't stop chanting. At this time, he found that the Pure Heart Mantra would affect the effect of the Concentration Pill, and he quickly stopped chanting. But at this time, he found that although he had stopped reciting the Pure Heart Mantra in time, the aura in the Concentration Pill that he had tried to take had already been consumed by more than half.

After the Heart Purifying Mantra stopped, Tian Xu found that the speed of the output of spiritual energy in the Concentration Pill had returned to its original state, so he calmed down and seriously appreciated the effect of this pill.

Fifteen minutes later, the aura in the Concentration Pill was basically exhausted. In other words, a top-grade centering pill can probably maintain the effect in his body for more than half an hour. Judging from the fact that the Heart Clearing Mantra can affect the output speed of the aura in the pill, the onset time of a pill should be affected by the strength of the aura and the severity of the injury of the person taking it, and I don't know how far the remaining six Centrifugal Pills can restore Ziyan and Aunt Zhou's injuries, or how long they can last. However, one thing is certain, that is, there should be no strong side effects of this reassuring pill.

Tian Xu took out a centering pill and put it in Aunt Zhou's mouth. Aunt Zhou subconsciously resisted, but when the pill was entered, her subconscious seemed to recognize that the pill was beneficial to her, and took the initiative to swallow the pill.

Tian Xu couldn't find out the specific situation in Aunt Zhou's body, but he could feel the resonance of the aura in her body after the Concentration Pill took effect. I don't know if it's because Aunt Zhou's own aura and Jin Dan are strong, or because she is seriously injured, the Concentration Pill is consumed very quickly, and in less than twenty minutes, the fluctuation of the aura resonance began to decrease significantly. Tian Xu didn't dare to delay, and hurriedly took out another Mindset Pill for her to take.

On the other side, Tian Xu also gave Ziyan a reassuring pill. Unlike Aunt Zhou, Ziyan's consumption rate of the Concentration Pill is much slower, and this Concentration Pill lasted for more than an hour. When Tian Xu fed the last super-grade centering pill into Ziyan's mouth, Aunt Zhou had already consumed all the rest of the centering pills.

What made Tian Xu feel relieved was that not long after taking the last Concentration Pill, Aunt Zhou woke up. She opened her eyes slowly, and didn't understand the situation for a while, and it took a while to recognize Tian Xu who was guarding her side.