Kang Yunbai turned around abruptly, looked at Qin Yi and said.

Qin Yi smiled and said, "Why not?"

He was indeed interested in this place, and besides, the cangwen fire spirit was down here, and this time he came for it, so there was no reason not to go.

Kang Yunbai also smiled, but his smile was full of sadness, and there was a deviation in the guard, which made it difficult for him to be happy.

Kang Yunbai took the lead in getting in, and Qin Yi bent down and followed in.

He deliberately paid attention to the footprints at the entrance of the cave, and then deliberately gathered his true qi, the force of the trampling was very small, and under normal circumstances, he couldn't leave any footprints at all, but even if he was so careful, he still left footprints, which also broke his previous doubts, it seems that the soil here is a little special.

The entrance of the cave is pitch black, and the inside is also pitch black, and there is even cold air blowing from inside, the air is relatively thin, and breathing seems to be a little uncomfortable.

Under his feet was a mixture of mud and stone, which should have been paved by Kang Yunbai, and when he stepped on it, there was a cool air coming from the thin-soled shoes.

The two of them did not walk fast, because the road was very narrow, only allowing one person to bend down and walk forward slowly, and it was pitch black inside, that is, the monk could still see some roads, and ordinary people were really black-eyed, and they couldn't get in at all.

I don't know how long it took, maybe it was half a pillar of incense, or maybe it was a stick of incense, because Qin Yi already felt that it was a little difficult to breathe, the deeper he went inside, the thinner the air became, he went out in one breath, inhaled it, and even a few stars appeared in his mind, and his chest was stuffy, a little disgusting.

And at this moment, a light suddenly shot in front of him, illuminating the pitch-black hole, like a flood, the rich air gushed out, and the feeling that made Qin Yi like he could not breathe under a deep dive disappeared in an instant, and the Venus in his mind also dissipated, and the depressed breath in his chest disappeared.

The bright light suddenly appeared, Qin Yi's eyes narrowed slightly, leaving only a slit, and he slowly opened it after getting used to it.

The open area, different from the narrow hole, appears more like a room, but there is no furnishings in it, just a large space dug out, on which there are several lights, pale yellow lights gathered together, illuminating the place through.

There is no over-repair, and the walls are neat mud walls.

And in the dirt wall, there are more than a dozen wrist-sized holes, and next to each hole there is a small hole. On the side, there was a shelf, and on the shelf was a strange wooden machine, with iron chains on it, and in the course of turning, the two hollow wooden stoppers at the very front of the wooden machine went in and out, one was drawn into the smaller hole next to it, and the other was inserted into the larger hole, and in the blink of an eye, the two hollow wooden stoppers withdrew again, and at the same time, at the back of the wooden machine, a gray hose suddenly popped up diagonally above the chain, and a breath of air came out of it.

"Moving air?"

Qin Yi smiled and looked at the other caves, the same situation was the case, although it was a wooden machine, the sound it made was very small, even if it happened together with a dozen, it was not too harsh.

In his heart, Qin Yi also had to admire that the thing that the wooden machine could use to move was nothing else, it was a spirit stone, but the amount of the spirit stone was the same as the beads that he liked to play with when he was a child in his previous life.

But it is precisely because of this that these oil lamps can be lit.

"Is this a perpetual motion machine of mutation?"

Qin Yi shook his head, then looked elsewhere.

On the left-hand side, there is a staircase, and on the top of the staircase, the same lamp is placed, and it is also burning, and the staircase is no longer dark.

The stairs rotated, like a whirlpool, and the eyes stretched down a few distances so that they could no longer be seen.

To be honest, Qin Yi also had to admire Kang Yunbai and them, walking here from the entrance of the cave, it was a downward walk, and it was very difficult to have this project.

"Let's go!"

Kang Yunbai's face was still gloomy, and it was very likely that someone had already broken into here, which made him unhappy anyway.

Qin Yi nodded, it was not appropriate to speak at this time, so he followed Kang Yunbai down the stairs.

And the further down, the slightly cool breath also slowly dissipated, the breath of winter and spring is like a passing cloud, quickly disappeared, followed by the warm fire attack, and then became hot, as far as the eye can see, there seem to be ripples.

Qin Yi mobilized the true qi in his heart, and the scorching fire qi did not erode his body, but the stairs seemed to have no end, constantly going down, down, down.

Finally, after turning a bend in the ladder, there are finally no stairs.

Whoa!

Qin Yi leaned against the wall, and there was a scorching breath behind him, but Qin Yi still didn't dare to step forward, because just in front of him, a real stream of fire appeared in front of him.

It's like a stream of fire after a volcanic eruption, and in some places, bubbling, it looks very scary.

And above this stream of fire, there hung black sharp cones, like black iron forged.

"Let's go. "999 starts

Kang Yunbai patted Qin Yi on the shoulder and continued to walk forward.

Qin Yi was awakened by Kang Yunbai's beat, shook his head, and opened his eyes, the fire flow still existed, but there was no bubbling and bubbling, and the black sharp cone on the top had also disappeared, just an uneven stone wall.

"Is it a hallucination?"

Qin Yi frowned slightly, shook his head, and then followed Kang Yunbai's steps, and that scorching aura strengthened again.

The light remained, but no longer a lamp, but a strange stone, emitting a white light that illuminated the passage through,

The footprints on the ground became clearer and clearer, and following the footprints, I turned around and passed through several holes, and finally came to a relatively empty area.

It's not a mistake to say it's empty, but in the center of it is a towering attic-like structure, made of stone, but it has a heavier feeling.

The stone tower is not too high, and is supported by stone pillars on all sides, but there is no shelter on the sides.

There are three floors in total, and the area of its structure is smaller when each floor goes up, which reminds Qin Yi of a game in his previous life: Minecraft, this stone building in front of him is a bit similar.

And on the top of the place like a lightning rod, there is a cyan bead hanging, and in the center of the bead, there is a little red point of light, like a bright star in the night, so conspicuous.

At the top, like a lightning rod, there are three black pipes as thick as a wrist, extending through and inserting deep into the top wall.

"Unexpectedly, it was still discovered. ”

And on the opposite side of this stone building, there were two black-clothed people, one tall and one short, the one who spoke was the tall man, who saw Kang Yunbai and them appear, but there was no panicked look on his face, but a faint smile.