Descending down the stairs section by section, sometimes a long straight road, sometimes a twist and turn, Huamian is now completely dizzy, and it is impossible to distinguish between southeast and northwest.

The most important thing is that it is easy to get down, and when you finish the performance, you should still have to return to the temple the same way, but from the distance you have come down, it must be quite physically exhausting to walk back.

Turning a wall, there were suddenly more lights in front of me, not only as dense as before, but also a fire in the center of the open area, reflecting most of the surrounding orange red, and the upper layer of the light was faintly covered with a thick layer of smoke, but there was no smoke left by anything burning in the whole space, and the smoke did not mean to fall.

"Underground caves?" , Hua Mian blurted out the question when she saw the towering stone pillars around the firelight.

The national teacher turned his head to look at her and said, "Do you know the cave?" It's not something that the average chef knows."

"It's over, I said the wrong thing again", Hua Mian didn't know that the cave was such a rare place in this world, but it was right to think about it, even in the previous world, you couldn't see the cave everywhere.

"When I was in my hometown, I heard Mr. Teacher mention ......", my hometown is really omnipotent, and all the things that can't be explained Hua Mian pulls out the 'hometown' to block the topic.

"The teacher in your hometown can know that the cave is visible, and he has some knowledge, not everyone can go down here."

The one who spoke was the priest who had been following the national teacher, and from the other party's speech and demeanor, Hua Mian guessed that his status was not low, at least he was also the kind of right and left hand cronies of the national teacher.

Hua Mian nodded, indicating that he knew, when he was chatting with the little attendants before, he had heard that in the underground temple, except for the previous national teachers and a few high-level priests, only the Lanqiu fairies of each year could enter, and even the emperor could only come in accompanied by the national teacher after a special ceremony, and would not go down to the depths.

According to the priest, this is just a resting place on the way to the temple, and the real temple is much deeper.

A priest took out a blanket from his package and spread it on a stone platform not far from the fire, and the national teacher immediately sat on it, while Hua Mian wandered around the burning stone pit, I don't know if it was because the cave itself was very cool, even if he stood in an area quite close to the flames, he would not feel hot.

Probably because of the fire, the material used as fuel in the pit was burned purple-red, and as the flames danced, gray-black smoke rose from the pit and drifted towards the top with the flow of air.

Normally, the smoke produced by combustion is heavier, and it should sink closer to the ground. Hua Mian thought about looking up at the area where the smoke had gathered overhead.

The smoke condensed overhead was more like clouds in the sky than smoke, and the smoke was flowing rapidly in the sky at a speed visible to the naked eye, except for the different colors, and the problem was that it was an underground space where the air flow could not be so fast.

Hua Mian raised her head and looked into the air, and circled around the stone pit a few times without seeing any reason, but was stopped by the voice of the national teacher behind her.

"You've seen the difference here"

It's not a question sentence, it means that there really is some secret in this space, and this secret is most likely to refer to .......

"There's a vent at the top of the pit, right?"