After Lin Yan blocked the sunlight, the light emitted by the spar was just enough to illuminate the place, and everyone began to walk towards the center of the mirror crystal pool. Although the Mirror Crystal Pond is called a pool, there is no water source in it, it is completely formed by the convergence of spars, and in the center of the Mirror Crystal Pond, there is a huge spar that is as smooth and flat as a mirror.

The origin of the name of the mirror crystal pool is because of this mirror-like spar, the first people to explore it called it the mirror spar, but except for this mirror spar, it is still a spar here, and there is nothing else special.

"There's nothing here but hedrons. Gong Qian knocked on the mirror crystal under his feet in confusion, and the mirror crystal was very hard, and he didn't even make a sound.

After Si Xu looked at the spec spar, he said to everyone: "Master said that this mirror spar is very hard, even if the master had the Qinglong Jade Sword in his hand back then, it would be difficult to break this mirror spar. ”

The Qinglong Jade Sword back then was also comparable to the existence of an artifact, and even this kind of divine weapon was difficult to break through this mirror spar, not to mention the poor team of Dong Xiaolong and others, and only Wang Zhenyu's bone spear could barely be regarded as a high-grade spiritual weapon, although it had the power of Honggu, but there was still a gap with the artifact.

Dong Xiaolong's left hand opened, and the frost dagger appeared instantly, holding the frost with both hands, and attacking the mirror crystal with all his strength. With a muffled sound, the sword spirit frost suddenly ran out, knocked Dong Xiaolong's head and said, "How can you treat my body like this!

Dong Xiaolong hurriedly picked up the frost, and when he saw that the mirror spar was not damaged at all, he also sighed: "This mirror spar is so hard!"

"Did you listen to me!" Seeing that Dong Xiaolong ignored him, Hanshuang punched Dong Xiaolong on the head again.

Dong Xiaolong felt a little painful, and raised his head and asked, "Why are you so heavy." ”

"I'm embarrassed to say it, I want to ask you! You hit me with such a hard thing! I'm a dagger, not a chisel!" said Frost angrily.

Dong Xiaolong didn't expect the sword spirit to feel pain, which surprised him very much: "I'm sorry, I didn't expect this mirror crystal to be so hard, you weren't injured!"

"Don't attack such a hard thing with me in the future!" said Frost Finger poked Dong Xiaolong's forehead.

"Be sure to pay attention in the future, be sure to pay attention!" Dong Xiaolong scratched his head in embarrassment.

Hanshuang saw that Dong Xiaolong's attitude was sincere, so he nodded with satisfaction, however, Hanshuang did not intend to return to the dagger, but stood next to Dong Xiaolong with the dagger in the form of a sword spirit.

"Why don't you go back?" Dong Xiaolong asked suspiciously.

"It's hard to come out, just play a little longer, and besides, I still have to supervise you, so that you don't do bad things with me. Frost snorted.

"There must be trust between people, I know the strength of the mirror crystal, so naturally I will not use you to force it again. Dong Xiaolong looked at Frost with a smile. Although Hanshuang has a tacit understanding with Dong Xiaolong, relatively speaking, it cannot be completely regarded as Dong Xiaolong's spiritual soldier. Before, Frost didn't have a sword spirit, and the ownerless state identified Dong Xiaolong, but now that Frost has a sword spirit, he also has his own consciousness, and naturally he will not completely obey Dong Xiaolong's orders.

"I'm a sword spirit, not a human, this statement doesn't hold!"

"Okay...... Okay!" Dong Xiaolong was also a little helpless, it was difficult for a girl to deal with her sudden little emotions, and the sword spirit was no exception.

Lin Yan looked at Dong Xiaolong, who was deflated, and couldn't help but smile and said, "It seems that during the time you left us, you had a lot of adventures!"

"Since you left, I haven't been idle, I went to Luofan City to provoke the Qin family, went to Kunshan to break through the ruins, and then went to the Sword Casting Conference, and then to this Xianmen Conference, I was hardly idle. "Since the moment Dong Xiaolong woke up in the Heavenly Dome Mansion, all things have come one after another, one after another, which can be regarded as very fulfilling.

"No wonder you've grown up so fast, and it's thought you're so closely connected to these adventures. Lin Yan patted Dong Xiaolong on the shoulder, it had taken more than two years to cultivate to this level, and it was already very fast. Some people will spend at least three and a half years at a stage in the Yudan Realm, and the growth rate of Dong Xiaolong is really very comparable, if it weren't for some adventures, it would really be unreasonable.

Dong Xiaolong waved his hand helplessly, and said: "It's not easy to live, I'll tell you slowly when I have time, and now the top priority is to break this mirror crystal." ”

"I don't have an artifact in my hand, so it should be difficult to break, but let me try it first. Lin Yan nodded and began to prepare for the attack. Lin Yan's true qi did not release a trace of it, as his hands crossed each other, the strong true qi of his fists attacked the mirror crystal, and the powerful impact of his true qi made everyone's body retreat, and then a huge muffled sound came from the ground, and after a while, Lin Yan withdrew his hand, and the mirror crystal was still intact.

"It seems that there is no way to break through a pure force attack. Dong Xiaolong could imagine how powerful Lin Yan's attack was, but the mirror crystal was not damaged in the slightest, and he finally understood why Emperor Yao and the three of them didn't explore this place back then.

"At least audibly, it's empty here. Lin Yan pointed to the mirror crystal under his feet.

"This mirror spar is like a mirror, and all we can see is our own image, and we can't see what is underneath. Sixu stood up and said.

"Attack its edge, since it can't be broken, we might as well just move it out of the way. Dong Xiaolong smiled slightly, he already had an idea.

"This spar grows with this mirror spar, and there is no way to start!" Gong Qian tried to cut the mirror spar with a giant sword, but the result was also in vain.

"This mirrorstone has a smooth surface and no edges and corners, and must be the most vulnerable place at its edges. The main reason why you can't cut it is because you haven't found the real edge. Dong Xiaolong attached his true qi to the mirror crystal, and then the true qi began to spread from the center of the mirror crystal, spreading to the surrounding spars and the mirror crystals, and soon Dong Xiaolong found the weak point where the two were connected.

Dong Xiaolong's arms were spread, and more than a dozen thunder spears gradually condensed, respectively inserted into various gaps on the edge of the mirror crystal. The thunder gun exploded instantly, and the power of its explosion made the gap expand little by little, and it became much more obvious.

"You continue to attack these gaps, and remove the mirror crystal straight away. Dong Xiaolong knew that it was a rare thing to completely pick up this mirror crystal stone by himself, but by mobilizing everyone's strength, things became the easiest and the most.

For a while, everyone began to attack the edge gap of the mirror crystal from all corners, and within half an hour, the mirror crystal under everyone's feet began to tremble. Seeing that its structure had begun to be destroyed, Lin Yan mobilized his true qi with both fists, directly knocked over the mirror crystal, and then picked up the mirror crystal.

After the mirror crystal was lifted, Dong Xiaolong borrowed the power of Xuan Jiu and directly collected the mirror crystal into the Yin and Yang Xuanjiu Pearl, but then a strong aura came from under the pool, which directly washed everyone away, and even made everyone faint.

"The gas rushing out of this pool is poisonous, everyone be careful!" Lin Yan took the lead in sealing his breath to avoid inhaling the poisonous gas again.

When the others heard Lin Yan's reminder, they also blocked their breathing. The cultivator holds his breath for a short period of time, and it has no effect on himself.

I don't know what the gas under this pool is composed of, but Dong Xiaolong also wants to know that this is some kind of biogas underground, which is mixed with toxic gas. The corners of Dong Xiaolong's mouth raised slightly, and a ghost idea was born. I saw a green phoenix flame condensed in his hand, and threw it into the mirror crystal pool below, and after a while, a powerful flame under the pool began to surge, heading straight to the mouth of the pool.

Lin Yan's reaction was also extremely fast, instantly resisting the rock wall above his head, wanting to let the flames spread, but when the flames reached the height of everyone, they stopped inexplicably. "What's going on?" Lin Yan said with some confusion.

"The air from outside the wall poured in, and by the time the gas had thinned out, it would have been extinguished very quickly. Dong Xiaolong said, "Wait a little longer, and you can go down here." ”

It didn't take long for the flames in the cave to recede, and everyone slowly prepared to enter the cave. In fact, this kind of combustion consumed the oxygen in the pool, making the oxygen in Tan run out, but it turned out that when the oxygen was exhausted, there would be a fresh influx of oxygen, which was not difficult for Dong Xiaolong and others.

Entering the bottom of the mirror crystal pool, there is still no water here, only the spars everywhere are slightly glowing, and the further you go in, the weaker the light becomes, and even almost no light. Without a light source, Dong Xiaolong had no choice but to light a flame, and as soon as the flame was ignited, the scenery at the bottom of the pool gradually began to emerge.

Originally, I thought that there were only transparent spars, but under the illumination of Dong Xiaolong's green phoenix flame, all the spars flashed with cyan light, and after absorbing cyan light for a while, the spars at the bottom of the pool began to emit colorful light, and gradually Dong Xiaolong's green phoenix flame was not needed to provide a light source.

Just as everyone was marveling at the beauty of this place, a strange sound wave sounded from the depths of the cave. This sound wave was slightly harsh, but it soon became very soft, and then sometimes sharp, sometimes relaxed, somewhat similar to He Weisheng's sonic attack, but this was a pure sonic attack, without the slightest true qi.

This sound wave did not have a great impact on Dong Xiaolong and Lin Yan, but Si Xu and the others began to gradually change a little, and gradually stopped moving, their eyes became dull, and they were a little painful.

"Oh, their minds are under control, and we need to get them to their senses as soon as possible. Just when Dong Xiaolong wanted to step forward to help everyone, the voice in the depths of the cave changed again, and this time Dong Xiaolong's spirit was a little shaken.