Chapter 1226

As soon as the spiritual sense left his body, it was distorted and deformed by the scorching high temperature. Although Yang Kai’s release and collection were extremely fast, a little bit of spiritual sense was still burned to ashes.

This made him couldn’t help but snorted softly. Fortunately, his spiritual consciousness was extremely powerful, and he also had the Warmth Divine Lotus to nourish his spirit. He didn’t care about this little loss.

In this instant of investigation, Yang Kai had already locked onto a certain position. His gaze crossed a distance of several thousand zhang and looked over there. He only saw that at a certain place on the ground, a terrifyingly red and extremely hot heat wave gushed out. That heat wave was like a dragon emerging from the sea, circling straight up, as if it was going to smash a hole in the red curtain covering the sky. However, the restriction in this fifth layer of the Flowing Flame Sand Land was not something that the heat wave could resist. That heat wave just rushed into the sky and merged into the red curtain, and then disappeared without a trace like a mud ox entering the sea.

An extremely pure fire spiritual energy leisurely spread out from the place where the heat wave appeared. After sweeping across the position where Yang Kai was located, it continued to spread in all directions. In an instant, in the fifth layer of the Flowing Flame Sand Land, the wind and sand were flying, and it was a sign of the end of the world.

Yang Kai’s heart stirred, and he stood in place waiting for a long time. Only when the movement over there subsided did he take a step and walk with difficulty towards that direction.

Fully two hours later, Yang Kai finally arrived at a certain place several thousand zhang away. He concentrated and looked at a huge pit in front of him, his face changing.

This was a huge pit. Standing on the edge and looking down, one could only see the flowing red lava that looked as smooth as water at the moment. It was not as terrifying as it had been when it erupted before. Streams of pure fire spiritual energy escaped from below this pit and integrated into the environment of the fifth layer, strengthening the power of the fifth layer little by little.

Occasionally, some gravel fell into the pit and turned into ashes when it fell into the lava. The terrifying temperature inside could be imagined.

This place looked like a crater, but in fact, it was not a volcano because it was a huge pit that appeared on flat ground. There was no sign of magma eruption and the formation of a volcano at all.

Moreover, Yang Kai also keenly detected that there were numerous branches and forks below this pit. From time to time one could also hear the movement like breathing coming from below, which was extremely regular.

Yang Kai’s thoughts turned rapidly, and a name blurted out： “Earth Lung Fire Pool？”

After saying that, Yang Kai was stunned on the spot for a moment, as if he couldn’t believe it himself.

The Earth Lung Fire Pool is an extremely rare underground fire vein and is most favored by weapon refiners. Because when weapon refiners refine weapons, they can completely utilize the power of this underground fire vein to temper materials, which can save weapon refiners a great deal of energy and countless time.

However, the number of sects that can possess such an Earth Lung Fire Pool is extremely small. Yang Kai has not come into contact with many forces and does not know much about the secrets of those sects, but he dares to affirm that on the entire Dark Star, the number of sects that can possess the Earth Lung Fire Pool as a special place for weapon refining definitely does not exceed three.

One of the criteria for judging the Earth Lung Fire Pool is this kind of regular breathing-like pattern, as if the lungs are expanding and contracting, which is very obvious, so Yang Kai recognized it at a glance.

And judging from the purity of the fire-type spiritual energy escaping from this Earth Lung Fire Pool in front of him, this fire pool is the best of the best. Any weapon refiner here can maximize his own ability, refine secret treasures that he usually cannot refine, and make the performance of those secret treasures reach the maximum.

All kinds of thoughts flashed through his mind, and Yang Kai’s face showed a look of surprise and joy.

Although he cannot take away this kind of Earth Lung Fire Pool, it is the best place for him to refine the Profound Yin Sunflower Water. He also did not expect that he could actually find such a place. Originally, he planned to find a nearby location to start refining the Profound Yin Sunflower Water, but now he has decided to go down and take a look.

Although it was dangerous, the more dangerous the place, the greater the gain. Martial artists had never been afraid of any danger when cultivating.

With this thought in mind, Yang Kai’s expression became firm. Not daring to be the least bit negligent, he urged his body-protecting magic flame to the maximum extent. At the same time, he sacrificed his purple shield and activated the power within the shield to form a small sandstorm that wrapped around himself.

This wasn’t the end. Yang Kai didn’t stint on the consumption of Saint Yuan and condensed dozens of Hao Tian Shields, which danced around his body.

After doing all this, he took a deep breath and directly jumped towards the cave entrance.

In mid-air, Yang Kai’s expression was extremely focused. With a glance around, he immediately saw a good foothold. His figure twisted and swayed in mid-air, and then he was already above the foothold. With a light step on his foot, he landed lightly on the other side and stepped on another foothold that he had previously favored.

Chi chi chi…

The lava below was very unstable and erupted from time to time. The splashed magma spurted out in all directions, making the cave walls around the pit riddled with holes.

The lava here seemed to be much more powerful than the lava in the ancient restriction where Wei Guchang and the others had previously fallen.

Quite a few lava smashed towards Yang Kai. The Hao Tian Shields shattered upon contact. In the blink of an eye, the dozens of Hao Tian Shields fluttered around Yang Kai were all consumed.

The power of the sandstorm protecting Yang Kai rolled up the sand and swept the lava aside. Occasionally, those that broke through the blockade of the sandstorm were also blocked by Yang Kai’s Demon Flame, Youdaoplaceholder0 him of his worries and allowing him to concentrate on finding a suitable foothold.

As he continued to descend, he replenished the damaged Hao Tian Shields.

After about thirty breaths, Yang Kai’s eyes lit up, and his figure suddenly shot towards the side, directly shooting into a cave in the wall.

As soon as he entered the cave, Yang Kai felt that the heat around him had decreased a lot, as if it was blocked by an invisible force. This immediately piqued Yang Kai’s curiosity.

Turning around and looking outwards, Yang Kai’s expression froze, revealing an incredulous look.

Because he actually saw countless caves similar to the one he was in on the opposite cave wall. Obviously, those caves were not naturally formed, because at the entrance of each cave, there were some numbers engraved, sorted in the order of A, B, C, D.

These caves were actually artificially dug out.

After a little thought, Yang Kai immediately understood and quickly turned around to search the cave he was in.

The cave was very deep, about thirty zhang or so. At the beginning, it was a straight passage. After passing through thirty zhang, Yang Kai immediately appeared in a spacious stone chamber.

The surrounding stone walls were dotted with some strange stones for lighting. Although countless years had passed, they were still emitting a soft light, making this place not appear dark.

With the help of these lights, Yang Kai put away his shield and magic flame while beginning to look around this stone chamber.

The ground of the stone chamber was flat. On the ground, a huge magic array was engraved. It seemed to still be functioning. Streams of extremely hot power were transported in from the outside by the magic array and then converged towards the center.

And at the position of the center, there was a huge furnace tripod with three legs and two ears, engraved with dragons and phoenixes. The style was simple and old. At a glance, it was something of an advanced age. It seemed that because of being baked by the hot power all year round, the whole body was vermilion, emitting an extremely hot temperature.

Yang Kai made a slight investigation and found that this furnace tripod was actually a Void Grade Low Rank refining furnace).

Yang Yan had used a refining furnace to temper materials before. However, since there was a stone puppet to help her she no longer needed to use the refining furnace. Only occasionally, when refining high-level secret treasures and finally shaping them, would she use it once.

Sure enough, seeing such a refining furnace, Yang Kai revealed a clear expression.

Just now, when seeing so many stone walls on the opposite side, Yang Kai had a guess in his heart. Now, seeing the situation in this stone chamber, he naturally verified his previous idea.

This Earth Lung Fire Pool is actually the place where the refiners of that great sect used to refine weapons.

No wonder. With such a treasured place, the smelters of that sect would naturally make good use of it. Those wall holes must have been specially dug out for the smelters to use.

And the unknown ancient formation existing in the stone chamber can extract the scorching power in the Earth Lung Fire Pool into the wall holes for the refiners to drive.

What a big deal！ Yang Kai secretly clicked his tongue. Being able to arrange these means under the Earth Lung Fire Pool must not be something that ordinary people can do. At least it requires a Void King Realm powerhouse.

However, what makes him feel sorry is that the Void Rank Low-Grade forging furnace in front of him has melted a lot and is not in a complete form. It seems that after so many years of baking, it can no longer bear it.

The reason why the formation can continue to operate for tens of thousands of years must also be because the Earth Lung Fire Pool can continuously provide energy.

Understanding this point, Yang Kai turned his head and looked around. Soon, he saw a stone pier in a corner. Although Yang Kai still doesn’t understand the formation after getting along with Yang Yan for a long time, he also knows some common sense.

This stone pier should be the control center of the formation in this stone chamber.

Walking forward, he punched out a strand of Saint Yuan and poured it into the stone pier. Sure enough, accompanied by a rumbling sound the array that was in operation automatically stopped and the scorching power that had been continuously extracted no longer poured in this direction.

Yang Kai waited quietly for a long time. After the smelting furnace cooled down a little, he then walked forward to check.

At a glance, he was even more disappointed.

After the temperature cooled down, this smelting furnace would shatter at the touch, and it was originally unknown what material was being refined inside. At this moment, it had already turned into an unknown thing and had no use value at all.

It’s no wonder. After such a long time of burning, even the most precious materials are probably already scrapped, not to mention the materials refined only with a virtual lower grade forging furnace. How high can the grade be?

However, this is just one stone room. There are so many stone rooms outside.

In line with the principle that one cannot return empty-handed when entering a treasure mountain, Yang Kai began to check each stone room one by one.

It took a full two days, and he checked at least three hundred stone rooms. Besides obtaining some materials that were piled up in the stone rooms and not yet started to be refined, Yang Kai didn’t have a harvest that made his eyes shine. All those smelters were also damaged.

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