The temperature of the underworld is strange. As the crowd went deeper into the ground, the temperature became colder and the humidity increased; But as the crowd got deeper and deeper, the temperature began to slowly rise. When everyone went thousands of meters below the sea level, the temperature began to soar.

"It's almost forty degrees." Green gathered his fireproof cloak, "How long will it be before we get to the Flame Throne?" ”

Halfling: "It's coming." A little further ahead, it should be the Flame Gate. ”

Green turned his head to look at the caveman walking behind.

Grimm, Thousand Shadows, and the halfling were all wrapped in fireproof cloaks, which could effectively isolate the surrounding heat and prevent burns, but Grimm and his party did not have extra fireproof cloaks for the cavemen, so there was nothing on the cavemen to resist the heat.

In the face of the increasingly high temperatures of the underground world, cavemen are in a bad state.

"Sweet potato, are you okay?" Green asked, a little worried.

"Quack." The caveman picked up a jug, poured a little water on his head, and let it cover the surface of his skin, lowering the temperature of his body. However, this is only a drop in the bucket for the increasingly hot air in the underworld, and the water poured on it quickly evaporates.

"Why don't you let the sweet potatoes return?" The halfling proposed, "When we get to the Flame Throne, it's going to be even hotter!" If there is no gear to resist the heat, the temperature there alone is enough to kill it. ”

Greene: "Cavemen may not be able to tolerate this level of heat, but will sandworms die because of this level of heat?" ”

"This ......" the halfling looked back at the caveman, "well, you're the boss, you have the final say." ”

The growth potential of the demons is limited, but in Green's opinion, since cavemen can obtain the petrified skin ability of the sandworm through the demon core, they may not be unable to obtain other abilities of the sandworm - such as resistance to high temperatures. This resistance to beating in petrified skin can be obtained by "taking beatings", and heat tolerance may be obtained by constantly enduring high temperatures. Anyway, a try won't make Green lose a piece of meat, even if it fails, at most it will be a caveman to suffer a little, but once it succeeds, then it means that this cultivation method can be promoted on a large scale within the demon race.

The group made their way deeper and deeper underground through the increasingly hot underground tunnels, and the cavemen puffed as they walked, occasionally pouring some water on their skin.

Soon, the share of water that belonged to the cavemen was gone.

"Quack ......" cavemen are desperate.

"Patience." Green instructed the caveman, "Use your skin to keep out the burning heat, and the heat cannot threaten your body. ”

The "quack...... caveman was depressed.

Suddenly, the caveman stopped and lay down.

Green looked at the caveman strangely: "What are you doing?" ”

Seeing the caveman's movements, the halfling was stunned for a moment, and quickly lay down and put his ears on the ground.

Seeing the halfling's movements, Green finally understood: "Did you find anything?" ”

Caveman: "Quack! Rattle! ”

The halfling's expression was a little solemn: "...... Boss, I think the high-level cores you want to collect may be coming over soon. ”

Green raised an eyebrow: "Oh? This is good news. ”

"The bad news is that the other party is a big guy." The halfling raised his head and said to Green with a solemn expression, "Big big guy! ”

Green's face was full of disapproval: "Where is the enemy?" ”

"In this direction." The halfling pointed in the direction of the left front, "It's coming this way." ”

"Dig it out of the ground?"

"Yes."

Hearing the halfling's words, Green pulled out his short sword from his waist, his eyes narrowed slightly: "How long will it take?" ”

"I don't know." The halfling lay on the ground and listened carefully, "It seems a little far away...... But the sound is getting louder and louder, and it's really coming this way. ”

Greene: "What do you think that would be?" ”

"I don't know." The halfling looked solemn, "Recently, the underground world has not been peaceful, and there have been many demonic beasts and even monsters that have never been seen before, so I don't know what it is." The only thing that is certain is that it is huge! ”

Green leaned close to the wall, put his ear to the wall, and listened.

The walls of the cave are a little hot, and you can faintly hear a "boom boom!" from deep underground. ~", as if something was digging underground.

"Sounds like a big guy indeed." Green's eyes narrowed slightly, "Could it be a dragon?" Or an oversized sandworm? ”

"At this depth, sandworms generally don't appear. However, the possibility of a dragon cannot be ruled out. The halfling looked a little nervous, "Boss, what are we going to do next?" ”

"It depends!" Green held the short sword at his waist, "If you can fight, you can fight, if you can't fight, you will run." Anyway, safety comes first, and I don't want to be buried alive anymore. ”

Slowly, the sound grew louder and louder, and soon the roar from the earth could be clearly heard, even if it was not against the wall.

"Boom! Rumble! Rumble! Boom~"

The tunnel began to shake, and the earthquake-like shaking caused small pieces of rubble to fall from above the cavern, and it became more and more intense.

Suddenly! There was a splash of rubble ahead, and something was breaking through the wall.

Hearing the sound coming from ahead, Green didn't hesitate to run in the direction where the sound came from.

Soon, Green sees a rubble ruin and a huge beetle the size of a large truck!

No! Not one, but a group!

I saw a group of beetles of different sizes "passing by" in front of me very arrogantly, swaggering through the wall, and swaggering past.

It was a group of giant beetles that looked a bit like lobsters, each covered in a heavy gray stone carapace, and the carapace folded in layers to look like a lobster shell. In addition to the carapace covered in their bodies, the large beetles had many small claws under their heads and bodies, which were constantly digging tunnels and digging back the rubble - except for the large pincers that didn't have lobsters, the rest of the body structure looked very similar to lobsters.

It's a torrent of giant beetles. The big beetles were about the size of a truck, and the small beetles were the size of a human head, and when the beetles passed by, Green couldn't do anything but watch them leave—even though Green was confident in his strength, he was a little weak in the face of such a large group of lobsters.

Beetles appear quickly and disappear quickly. In the process of splashing a piece of rubble, the army of lobster beetles dug directly through the cave wall, and then rushed in front of the eyes of Grimm and his party like a group of "rampant convoys", leaving only a piece of rubble and a huge underground tunnel to tell everyone what had just happened here.

"What was that?" Although it was only a glimpse, Green felt that those things were not to be messed with.

"It's a stone shrimp! An elemental creature. The halfling looked at the huge tunnel left by the beetle after excavation, and his face turned a little blue, "In the underground world, stone shrimp are not uncommon, and there are often some stone shrimp around the mine that steal ore, but this is the first time I have seen such a terrifying stone shrimp community." ”

"These things don't seem to be gentle creatures, and those dwarves live underground, haven't they thought about cleaning up these dangerous creatures?" Looking at the huge tunnel left by the group of "rambers" just now, Green felt a little numb in his scalp.

Even against the dragon, Green has the confidence to fight with it, but when he encounters such a group of "rampaging army", Green's confidence is not so sufficient. The so-called two fists are hard to beat four hands, even in the case of strength crushing, it is difficult to ensure that you will not be injured under the siege of a group of people, not to mention that this group of beetles does not seem to be easy to mess with.

"Stone shrimp is a relatively common elemental creature in the underworld, feeding on ore, but the average stone shrimp is usually that large." The halfling gestured in front of him, "The smaller ones are even the size of a fist, and the threat is actually not high." ”

"So what's going on with those guys just now? Those just now don't look like they're the size of a fist. ”

"I don't know." The halfling paused, "But we're almost at our destination, so ask the local dwarves when the time comes." ”

The shrimp whizzed past, leaving behind only a huge tunnel and rubble all over the ground.

Looking at the pitch-black tunnel and the sound coming from the depths of the tunnel, Green's heart moved slightly: "If you can recruit these stone shrimp under your command, it should be easy to dig a tunnel to the demon realm, right?" ”

Passing schools of stone shrimp excavated a wide and large passage, but at the same time, the original dwarven tunnel was destroyed. The rocks clogged the tunnels leading to the dwarves, so they had to be dug up in order to move on.

It's a troublesome project.

The halfling and the caveman took the pickaxe and began to dig up the rubble, and it took half a day to dig the tunnel that was clogged with rubble.

Perhaps because of the commotion caused by the Rock Shrimp Rammer army, Grimm and his party encountered three dwarven patrols who had come to reconnoiter shortly after entering the tunnel.

The three dwarves were well-dressed and bulky in heavy armor that looked like three moving metal cans. The three dwarves carried heavy hammers on their backs, blocking the front of Grimm and his party in a zigzag pattern.

"Growers, halflings, and a caveman. What a rare combination. The dwarven warrior at the head looked at Grimm and his group, "Where are you from?" Where are you going? ”

"Hello." Green stepped forward, "We're here from Iron Snow City, and we're going to visit friends on the Flame Throne. ”

"Visiting friends?" The dwarf at the head looked at Green suspiciously, "Who are you going to visit?" ”

Green glanced at the three dwarves' gear: "Oscar Toruń." ”

Hearing Green's words, the dwarves couldn't help but look at each other from the ground.

"Why are there so many people who have come to visit the king lately?" One of the dwarven warriors couldn't help but grumble.

"So, which country are you king? Or a prince? The dwarven warrior at the head looked at Grimm suspiciously.

Green blinked and frowned slightly: "Listen to your tone, besides us, the kings and princes of other countries have visited your king recently?" ”

The dwarven warrior smashed his mouth: "Is there a passage paperwork?" ”

"Absolutely." Green paused and looked at the dwarf in front of him, "I don't know who you are?" ”

"We are patrol guards at the Gate of Flames. Show us your paperwork. The dwarven guard spoke.

Green looked at the three dwarves, hesitated for a moment, took a document from his bosom, and handed it over.

The dwarf at the head took the document and looked at it: "...... It is indeed a pass document issued by Iron Snow City. ”

After determining the situation, the dwarf returned the paperwork to Green: "Put it away." ”

Green put away the papers.

Greene: "We're heading to the Flame Throne, so we won't bother you." ”

"Since you're from here, do you have any special circumstances on the way?" The dwarven guards didn't let Green and his party go.

"On the way, I met a school of stone shrimp. Other than that, there doesn't seem to be anything special. ”

"Stone shrimp?" The dwarf frowned slightly, "That kind of thing is everywhere underground. ”

"Hmm...... In addition to those stone shrimps, I have also encountered many monsters...... But I don't think there's anything to worry about. ”

The dwarf led by "Ah......" seemed to be a little disappointed.

"Wait." At this moment, a dwarf in the back was keenly aware of the problem in Grimm's words, "Why do you say that monsters are not worth caring about, but the stone shrimp makes you care a lot?" Aren't stone shrimp and monsters similar? ”

Green: "Although I encountered a lot of monsters on the road, those monsters were quite weak, but the group of stone shrimp I encountered before looked dangerous. ”

"Dangerous?" The dwarf looked at Green suspiciously, "Stone shrimp is basically just stealing some ore, although it often causes headaches for the miners in the mines, but it is not dangerous anyway, is it?" ”

"Hmm...... I think anything that's about the size of a dragon is dangerous. ”

Hearing Green's words, the three dwarves couldn't help but widen their eyes and look at each other.