Because Lan Zhan made targeted supplements to Zhang Lan's basic knowledge of abilities, this made Zhang Lan no longer look like a flower in the fog when cultivating Guiyuan Gong, and his cultivation speed was greatly improved. At the same time, because of a certain degree of understanding of the basic knowledge, the ancient texts on Guiyuan Gong are not so difficult to understand.

Hidden in the cave for two days, Zhang Lan can be said to have been sleepless for the past two days, because Guiyuan Gong itself is an interpretation of the origin of heaven and earth energy, and there are many places that coincide with the application of the basic element energy taught by the blue dye. And the biggest cultivation achievement in the past two days is that he can actually open the merge state without the cooperation of indigo dyeing, and the duration has also increased from one minute to five minutes, and the interval time has also changed from the original one day to the current seven or eight hours, such a result makes Zhang Lan excited.

Because Aizen fell into a deep sleep, Zhang Lan was not sure if she could still borrow his power. You must know that your current physical strength is completely inadequate in front of a lizard man like Zhezhuo, and the biggest help of Aizen is invalid, if you encounter Zhezhuo or the same vulture dragon blood armor again, you can really only stare dryly and wait for death.

Therefore, in the past two days of cultivation, he has almost put all his energy into the study of the blue light of the Divine Space, and once when he accidentally touched the blue light while fiddling with the black silk through his mind, he found that the black silk could actually drive the light particles through the Divine Space, which was extremely similar to the situation when he was condensing the dantian qi mass and the black silk accelerated to seize the energy of heaven and earth, which made him can't help but have the idea of trying to use the black silk.

Although Aizen clearly told him that the short-term goal of helping him cultivate was to master the use of black energy threads, because the energy contained in these black energy threads was huge and unknown, even Aizen did not dare to try it easily, and he used his own strength to help Zhang Lan cultivate, and at this time, when Aizen was asleep and the lizardman could kill him at any time, the huge pressure made Zhang Lan unable to control so much.

Gritting his teeth, Zhang Lan tried to build three bridges connected with the "Thinking Body" with black silk as the medium in the Mind Preservation Space, and then when he felt the blue light particles entering the "Thinking Body", he used his handprint to mobilize the spiritual imprint of the body, and the inscription on his arms did not react at the beginning, nor did he have the permeability of the elemental power infusion between the rotation of his mind, just when he thought he had failed, the air mass of the dantian suddenly appeared and slowly rotated, and connected with the black silk of the Soul Space, and the inscription on the arms suddenly appeared at this time A familiar blue light appeared, The power of the elements permeated the whole body again, and the first attempt succeeded in such an inexplicable situation. And he found that as long as the dantian qi mass rotated, he could always remain in a combined state, and this state could now last for up to five minutes.

Looking at the blue light shining on her arms, Zhang Lan really breathed a sigh of relief, and now she has at least the power to protect herself. However, for cultivating the dantian qi mass, in addition to making it more condensed, prolonging the auxiliary traction blue light energy, it is still impossible to feel even a trace of the elemental power that can be used. This also made her secretly determined to cultivate her own elemental power, otherwise just borrowing the power of others, who knows who would drop the chain one day.

It wasn't until the third day that Zhang Lan, who was studying the use of sonic skills, was suddenly disturbed by a huge shock, accompanied by the falling gravel on the roof of the cave, and he was in a state of confusion and was almost shaken to the ground by a larger vibration. This finally allowed him to completely recover and hurriedly drilled towards the entrance of the cave, but when he ran to the entrance of the cave, he suddenly realized that if this shock was not a natural disaster but a lizardman, wouldn't he be a sheep in the mouth of a tiger, so he hurriedly stopped.

Then, there were two more shocks. After listening carefully to the two tremors, the sound of the shaking seemed to be caused by something striking the mountain. Just when he was flustered, it suddenly occurred to him that he was practicing the manipulation of sound waves, so why not use sound waves to investigate first. As soon as he thought of it, he instantly formed several handprints, and the air in front of him began to vibrate at a narrow ultra-low frequency as his handprints began. Seeing the change in the air in front of her, a trace of excitement appeared on Zhang Lan's face, and she changed her handprint more quickly.

As the frequency of the vibrating air became higher and higher, and its amplitude became narrower and narrower, when the air completely turned into a line, it suddenly shot out like a sharp arrow, and the rock blocking the entrance of the cave was like tofu being shot out of a small hole that was almost invisible to the naked eye. As soon as the sound wave emerged from the cave, it spread like a ripple of water to the surrounding area.

As this sound wave diffused and reverberate, the picture outside the cave gradually took shape in Zhang Lan's mind.

That's right! Zhang Lan's method is based on the principle that bats perceive the environment with sound waves. There were indeed lizardmen outside the cave, but it was not Zhezhuo, but there were more than thirty lizardman soldiers. There were more than fifty goblins on the other side, and these goblins were apparently being hunted by the lizardmen, as a large number of them were women, children, and children. However, they were not completely inferior in this confrontation, as there were still ten goblin warriors with red crystal spears in the team.

Due to the slow movement of the goblin team, they were completely turtle speed relative to the speed of the lizards, but the lizardmen did not dare to get completely close, because as long as they entered the effective range of the red crystal gun, they would attract one or two shots from the goblins. And the huge power of the red crystal spear also made the lizardmen jealous, if it weren't for the poor shooting skills of the goblins, most of the red light hit the surrounding mountain walls, maybe the lizardmen would have dispersed long ago.

The vibration Zhang Lan felt in the cave was caused by the red crystal spear in the goblin team deflecting on the rocks around his cave.

The goblin team moved slowly but surely towards the southwest of the mountain, and the team of lizardmen following behind them seemed unwilling to let go of the goblins, following them beyond the range of the red crystal guns.