The deep ditch and cliff can't stop the pace of Lei Rui and Thor.

Thor grabbed Thor's hammer in his right hand and threw it as fast as a ship's propeller. With a buzz, Thor's hammer soared into the air with Thor and flew over the deep ravines and cliffs, through the huge metal door that had opened through the hole, and landed in the swarthy underground hall opposite.

Lei Rui didn't have such trouble, Mark 42 steel armor rose into the air, easily followed Thor behind, and then slowly landed.

This is a huge underground palace, with pillars standing up to the sky and the earth, as thick as three people hugging each other. Looking up, Lei Rui didn't see the ceiling, perhaps because of the darkness, the top looked extraordinarily dark and deep, as if it was directly blended into the darkness.

The floor is paved with an unknown material, which looks like metal, not like stone, very flat, and there are no traces and gaps in the splicing, as if it is formed in one piece, and even at the bottom of the columns, there are no traces.

It seems that this underground palace was dug out of this huge rock as if it were carved, and not built in a hollow underground.

There were no lights or anything here, and Lei Rui and Thor went straight into the hall under the lamppost of Mark 42's steel armor, and walked into the darkness.

The deeper he went into this underground palace, the more Lei Rui felt that this was definitely not the work of the Asgardians. He turned his head to look around, the pillar of light of Mark 42's steel armor swept through the darkness, and asked, "This is not an underground palace built by the Asgardians, is it?" ”

"Father didn't tell me this, he just told me about the flame giant Sutert," Saul replied, "but I trust your judgment that the Asgardians would not have built such an underground palace like this, eerie, terrifying, and the Asgardians did not like that feeling." ”

A strange thought suddenly popped up in Lei Rui's mind, could it be that the Flame Giant clan is the aborigines of Asgard, and the Asgardians led by Asgard are the latecomers?

This thought was only fleeting, and Lei Rui didn't say it, and directly asked Thor for confirmation.

From the passage at the back of the huge underground palace, all the way down, down, and down. Along the way, from gloomy and damp to dry, and so on many times, the two finally walked through the stone steps and entered the underground wilderness with no road at all.

There are only cobweb-like holes that lead in all directions, and it is difficult to tell where to go in the right direction. No wonder Heimdall said that this place is very dangerous, such a complex underground network passage, no matter how many people enter, it is very likely that he will get lost in this underground labyrinth before he sees the flame giant Sutert.

However, Thor seems to know how to go, and every time he encounters a fork in the road, he looks left and right, chooses a path, and goes on firmly.

Until the eyes became more and more open, and the two finally entered an incomparably magnificent underground hall. Compared to the underground palace at the entrance, it is many times wider and more magnificent.

There are no traces of artificiality here, and it is a completely naturally formed underground cave.

Lei Rui looked up, looked at the lamppost and disappeared into the darkness, and asked, "This is it, right?" ”

"Yes!" Thor replied, "What my father told me was that the place where the flame giant Sutert was sealed was a huge underground hall, and that as soon as I saw it, I would be sure that it was that place. ”

"Are you convinced?" Lei Rui asked with a smile.

"Of course," replied Thor, "I can already smell the sulfur of the flame giant Sutert. ”

Of course, this is a joke, although Sutert's name is preceded by the head of a flame giant, but it does not necessarily mean that he is a big guy with flames all over his body, maybe all he has is the power of flames.

Lei Rui has been in the universe for so long, and he is still sure that the three cornerstones of this universe are matter, energy and spirit. No matter what kind of life it is, it still follows such an infrastructure. The flame giant Sutert may be a very unique life, but it must not be able to jump out of the infrastructure of the universe!

The two were discussing where the place where the flame giant Sutert was sealed, and in the darkness deep in the cave, there was a faint low roar, like some huge monster underground, inadvertently burping after eating and drinking.

Lei Rui and Thor glanced at each other, and there it was!

A low roar came from a sinkhole, and the exit was in the middle of the underground hall, with a radius of three meters, and it looked like an upside-down funnel, but I didn't know how deep it was.

"I'll go in first!" Lei Rui said to Thor, "You come down later." ”

Thor nodded. The advantage of the Mark 42 steel armor is reflected here, it can easily hover in the air, and such a vertical cave can also easily fly down. Thor can also fly with the help of Thor's hammer, but he doesn't know the depth of the cave, and it is down, he is a bit reckless in doing so, and it is easy to hit a trap or a hard rock.

Lei Rui slowly descended at the entrance of the cave, and went thousands of meters deeper, and this vertical underground tunnel began to gradually become spacious, and there was a faint fiery red light underneath.

"Captain, what's going on down there?" Thor's voice came from above the cavern, apparently impatient.

Lei Rui raised his head and shouted: "It's not bad, it's just 1,200 meters deep, and it's not yet at the end." Wait a little longer, and I can already see the fiery red glow deep underground. ”

After descending another 300 meters, Lei Rui saw a huge cave again, but unlike the huge cave above, it was full of red light, and it was not completely dark.

And it's not a desolate place, but a living thing.

Lei Rui looked around, condensed in the air, and beside him, an orange-red spatial portal appeared. As soon as it was formed, Thor stepped out of it and said, "That's a good idea, oops......"

He didn't notice that the spatial portal was open in mid-air, and he stepped on the air and fell down.

Lei Rui was prepared, reached out and grabbed his arm, took him in his hand, and descended, while saying, "The place where Odin said the seal must be this place. Whatever the situation is not right, this is not like a sealed land, but rather an underground kingdom. ”

Thor turned his head to look around, and also agreed with Lei Rui's statement, where is this the place where the flame giant Sutert is sealed, it is clearly the country where the flame giant Sutert is located!

This is his territory! The Fire Kingdom beneath Asgard!