Thanks to the pn square children's shoes for the tip! Let's continue to work the codeword, there may be another chapter in the evening!

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Chen Kai guarded the entrance to the tunnel, which was more than 20 meters upward. The entire tunnel was excavated ten meters underground, and the walls of the tunnel were constantly reinforced by several earth elemental mages, at least as strong as rock.

No less than three of the mages in each area had been released into mud and stone, so several mages had to re-meditate almost every half hour. Fortunately, turning mud into stone is only a second-order low-level spell, and most earth elemental mages have learned this spell when they are promoted. It's just that, as with most spells, the more you want to increase the spell's effect, the more mana you'll pay. For example, turning a cubic meter of mud into gravel costs half of the mana of those mages, and turning it into a large chunk of rubble costs 60% of the mana. To become the thick rock that Chen Kai is climbing now, and make an arch. The five earth elemental mages had to meditate for an hour every ten minutes, which was of course very efficient. At least every ten minutes, a mage can cast a high-intensity turn of mud into stone on a place.

As for why they didn't dig more than 10 meters of stratum, if you know how many fossilized mud scrolls Chen Kai and they consumed to dig down a distance of 20 meters, you can understand why. A total of 58 third-order fossils were clay scrolls, with a total value of more than 30,000 gold coins. Chen Kai is blood was lying in his heart while releasing the scroll. Because the formations above are almost entirely rocky rammed earth, a shovel goes down to dig not mud but the edge of the collapsed shovel.

Below the 20-meter slope is a tunnel with a length of 30 meters, which is easy to excavate, but it also consumes at least fifty of Chen Kai's fossilized clay scrolls. This is the consumption of nearly 30,000 gold coins, fortunately, these scrolls were picked from Lin Lei's hands, otherwise Chen Kai really didn't have so many scrolls in his backpack.

Now Chen Kai is not concerned about the excavation below, but the fierce sound of horses' hooves constantly coming from above. Chen Kai could clearly feel the drum-like agitation in the air, and even the eardrums of his game character became extremely uncomfortable with this vibration.

"Dumbo! You really came not with 10,000 skeletal cavalry, but only with 1,000? Chen Kai looked at Xu Fei with a stern and fearful expression, because this kind of shock was obviously not something that a thousand cavalry could get. Chen Kai could even feel a trace of dirt rolling down from above, from the blocked entrance, of course.

"It should be!" Xu Fei swallowed a mouthful of saliva, "I also have a rough estimate, but those knights will definitely not exceed two thousand people, no matter how bad my eyes are, ten thousand people and a thousand people can always look at the size of the past." Xu Fei said with great certainty.

"But it's too loud, isn't it?" Cheng Feng said as he covered his mouth with a white handkerchief because he felt that the air in the tunnel was getting dirtier and dirtier.

"If only I could see the situation outside, but unfortunately I can't observe it with a crystal ball!" Chen Kai looked at a few wizards who were wiping the crystal ball and said.

"Why?" Cheng Feng asked strangely, he felt that the wizard's crystal ball observation was very good, at least he could use the wizard's eye to see a lot of things outside.

"If you were so scared that you had nightmares for three days in a row, you would never have let a wizard use the Wizard's Eye in Adog." Chen Kai patted Cheng Feng's shoulder and said this, and by the way, he also took the handkerchief in his hand and wiped his hand that was just stained with grease.

"Damn! You have so much oil in your hands? Cheng Feng turned his head and looked at some shiny oil stains on his shoulders and said angrily, and immediately took out three hand towels from his backpack and wiped them vigorously.

"Sorry! I forgot about the barbecue just now. Although Chen Kai said this on his mouth, the handkerchief in his hand that had been obtained from Chengfeng was not returned to him. He knew from the mouths of the people in Chengfeng's team that Chengfeng had no cleanliness habits, and he was sloppy to death, and a pair of socks could be worn for two weeks. But now he had to take a shower twice a day, even at the very least, and of course it was all brought out by his mentor.

"That's it! Don't make any noise, if you have time to talk, don't hurry up and dig the mud for the old lady! Chen Yi stood in the passage with her waist and yelled at Chen Kai, of course, her mouth was covered by several girls before she finished speaking. Then they listened nervously to the movement outside, for the sound of horses' hooves suddenly stopped.

"Dumbo! How many meters of road have collapsed in total? Chen Kai gently leaned on the slope and asked Xu Fei beside him.

"At least four meters! We won't be able to dig any more. Xu Fei lay beside Chen Kai and answered cautiously, and then picked up the dirt that rolled down from time to time with his hand.

"And how much dirt is there collapsing out there?" Chen Kai turned his head and asked again.

"There should be no less than ten backpacks!" Xu Fei can't calculate how much dirt is piled up in total, so he can only calculate it using the player's backpack grid. A backpack is about the weight of dirt in a single compartment in a backpack.

"Rub! Rub! What kind of sound is this, everyone is strange Listening to the strange sound coming from the top of the slope, and then Chen Kai, who was lying in front, suddenly saw a huge white paw directly grabbing the soil in front of him and cutting it open.

"! It turned out to be a skeletal dragon! Seeing the huge face behind the claw, as well as the even larger body behind it, Chen Kai naturally understood the identity of the other party.

"Stand back! Hurry back! Although Chen Kai knew in his heart how to retreat and it didn't do much, he could at least delay the time for the skeletal dragon to catch them. At least twenty meters of distance and nearly half a meter thick slab was enough for it to dig for a long time.

"It was dark before dawn, and the starlight of the god Aurora still shines on the earth, in the name of Aurora, the lord of the dawn, the light of the stars of the eternal night!" Chen Kai stood at the bottom of the slope, and a spear with a sparkling light gradually appeared clearly in Chen Kai's hand.

Chen Kai also discovered that one thing was that the Dou Qi of the Light Attribute could also act as the driving force for the activation of the Divine Technique, at least for the Star Spear, both of which would absorb their powers. And to increase its power, after entering the fighting qi, the entire spear exudes a fierce aura.

"Click! Click! As the spear in Chen Kai's hand became thicker and longer, the sound of the bone dragon digging became louder and louder. Chen Kai vigorously supported the spear in his right hand and rushed towards the slope, and at the moment he stepped on the slope, Chen Kai looked up and saw the huge skeleton earth dragon that was only about ten meters away from him. It was pulling hard at the gravel in the passage, and looked at Chen Kai below the slope with two flame-like eyes the size of a football. and the spear in Chen Kai's hand that was like a toothpick to it, and it saw that the spear grew larger and then disappeared in front of its eyes.

"Boom!" A huge wave of air suddenly appeared in the narrow ramp passage, accompanied by a short, high-pitched sound. The skeletal earth-walking dragon's head suddenly collapsed into a cavity at the front end, and an extremely dazzling flash erupted from inside.

"With this power, it should be almost at the level of a sixth-level divine art!" Chen Kai stared blankly at the skull of the Earth Walking Dragon that had been pierced by the spear of the stars, and the bursts of lightning-like brilliance that continued to come out of the skull.

“－6743！” “－17341！” Two injuries with a very large gap floated gently from the skeletal dragon's skull, sending a loud roar. Chen Kai hurriedly rushed to a huge burst of shock air in the entire slope tunnel, directly blowing Chen Kai, who had exhausted his magic power and fighting energy, backwards.

"Bang!" The massive head of the skeletal terrain dragon rose high in pain and slammed directly under the walls above. And its body was constantly emitting white light and faint smoke from the damage caused by the divine magic, and dozens of temple professionals below the slope kept swinging their offensive magic towards the skeleton dragon.

Each spell went straight to its head, and several of them hit its sparkling eyes. As a result, the already painful skeleton Earth Dragon became even more uncomfortable, and its body kept hitting the surrounding walls. The entire passage rumbled under its impact.

"Old Su, the Bone Terrain Dragon is a few levels of creature!" Chen Kai gasped and asked Su Xinghe beside him.

"Rank 7 or Order! But looking at this body size, it is estimated that it will not exceed the seventh order at most! Su Xinghe watched in horror as the huge Earth Walking Dragon's head frantically slammed into those walls. Originally, only the second-order and third-order low-level divine arts could not hurt the terrain dragon at all, but the special restraint of the divine magic on the dead creatures, as well as the defense of the earth-walking dragon that was broken by Chen Kai, allowed other people's divine attacks to cause some low-level damage to the skeleton earth-walking dragon.

Being bitten by one ant hurts at most, but being bitten three or four times by dozens of ants in a row is terrible when the pain accumulates. Moreover, Lin Lei sent over to follow Chen Kai to plan to enter Yadoge, and basically carried a few hands of goods at the bottom of the box. Among them, two of them actually obtained the very powerful magic technique of the Dawn Spiral Cannon like Chen Kai.

"Click! ~~ Click! A faint crack suddenly appeared on the upper part of the slope, and then rapidly expanded. When Chen Kai and the others found out, the entire crack had expanded to at least nearly 10 centimeters, and then they heard a loud noise. Everyone screamed and ran towards the back of the tunnel as the walls above collapsed.

A continuous sound of "boom" came from above, and the entire slope collapsed in an instant, with a tunnel that collapsed nearly five meters. A huge cloud of dust rushed towards the passage, and everyone was choked by the huge dust and couldn't breathe.

When he calmed down, Chen Kaizhan walked to the entrance of the slope that had collapsed, and looked at the slope blocked by gravel and mud with cold feet. The system just gave all 1% experience gain, because the skeletal earth-walking dragon had been completely crushed to death. The same Chen Kai and they were also sealed in the tunnel, which is to dig their own graves in an idiom.

"Dumbo! Chengfeng checks that there is also a ventilation pipe that can be used! Chen Kai looked at the rubble that kept rolling down, and calmly said to a few people behind him.

Soon, several people split up and began to check the small pipes in the tunnel, although the quality of these improvised copper pipes is not good, but it is everyone's hope to survive in the tunnel. If the tunnel collapses, they can still have some hope, then if the pipeline is gone, there is no hope at all, and the more than 100 people in the tunnel will all be suffocated to death inside.

"Ventilation pipe No. 1 is not responding!" After Fei Yun took a small pumping pump for a while, he found that no matter how much he pumped, he couldn't get any breath. Xu Fei grabbed a suction tube in his hand and gave up after trying it for more than a dozen times, and dropped the suction tube in his hand in a dejected manner.

"This one is still angry!" Cheng Feng's surprised voice came, and the air pump in his hand slowly pumped, and pulled out some air currents with thick earth ash. Then the last ventilation duct was also found to have a faint trace of air to flow, although it was very rare, but it was still able to get enough air for half of the people in the entire tunnel by relying on the continuous pumping * of the exhaust cylinder.

"Shifts! Half of them went offline to rest, and the other half continued to dig here. Chen Kai looked at the two small air pumps installed, and the two of them specially shook the simple grip to slowly pump the air in the pipe over, supplying the people in the entire underground space.

Chen Kai and the others spent the whole night in fear, but fortunately, after the city wall fell, those skeleton knights did not continue to excavate. Or they can only drive one terrain dragon to dig the soil of the city wall, and the others can't drive it.

When the sun rose the next day, Chen Kai and the others had already begun to dig upwards. Everyone's backpacks were already stuffed with dirt, and more were piled up in the passages. Basically, they dug as much as they wanted, and in order not to let the bone shelf above find out the direction they were heading, Chen Kai had to dig down for five meters.

Gently digging through the dirt at the top, Chen Kai cautiously poked his head out and found that the surroundings were a very dark place. Relying on the borrowed luminous ring in his hand, Chen Kai saw his surroundings clearly. It was the underground treasure house where they had stayed in the last promotion mission, and after digging more than a hundred meters underground, Chen Kai and the others finally dug into the underground treasure house of this chamber of commerce near the city gate before noon.

In order to dig here, Chen Kai used all the dozen or so scrolls he only had fossilized into mud, and at the risk of the tunnel collapsing, he let several earth elemental mages keep casting spells. Only then did he dig this place in one day, and after climbing out of the hole, Chen Kai tried hard to take a breath of the air outside, which was not very fresh. Then more than a hundred players crawled out of him, panting like dead dogs.

"Phew! The smell here still stinks! Cheng Feng covered his mouth and nose with a clean white handkerchief, although his body was covered with mud and even his hair was mixed with a lot of gravel, but he maintained a clean face, even cleaner than the faces of those girls.

"Shhhh Be quiet, God knows if there are any bones around here! Chen Kai turned his head and said to the people lying on the ground, and then he stood there stunned.

"Bang Bang!" A soft applause came from behind everyone, and out of the shadows of the gray underground treasury came a young man in a gorgeous robe. "Very vigilant, but remember to look around before you crawl out next time! Bub! ”

"Who are you?" Cheng Feng put his hand on his long sword, and he didn't have any affection for this stranger who was twice as handsome as him. Especially in this place full of dead creatures, a stranger in such neat clothes suddenly appeared.

"Little thing! Take your hands off that rotten piece of iron! I don't like someone pointing at me with a piece of rotten iron that doesn't even count as a weapon! By the way, is this a good thing! The young man walked towards Chen Kai and them with brisk steps, and several players who stood in his way were directly bounced out by a force, and Cheng Feng's hand holding the long sword left the weapon with a huge force.

"Introduce myself, my name is Ness Boghliv Adog, the master of Adog, and of course more people like to call me the Death Monarch!" Ness smiled softly, and gave Chen Kai a standard aristocratic salute.

"Don't worry! I'm not here to kill you, how could I be willing to kill you with such a fun little mouse! Ness showed a very relaxed smile to Chen Kai and them, of course, that smile was extremely terrifying to Chen Kai and them. Several girls have been so frightened that they hugged each other, and the name of the Dead Monarch has always been directly circulated among players, the legendary demigod in the city of Adog, the terrifying demon king who controls the entire Lord's hundreds of thousands of dead creatures.

"Now that I'm done introducing myself, it's time for me to leave! Hope to see you again next time! By the way, I forgot to remind you, I've already gathered more than 300 Skeleton Knights outside! You have three minutes left to crawl back into the hole! Keep moving on below! Little mice! Hahaha! After Ness finished speaking, he disappeared beside Chen Kai and them, and it wasn't until a minute later that the others trembled and quickly crawled into the tunnel.

Chen Kai was the last to climb into the tunnel, and he saw dozens of bone knights with black smoke all over their bodies rushing into the underground treasure house. They were running at an unusually fast speed, and they crashed straight through the walls outside the vault.

"Quick! Plug the entrance! Chen Kai quickly slid into the tunnel below, and then let the others dump dirt into the entire passage, and the dirt in his backpack had already fallen on it as it slid down.

At this time, on the top of the cavern of the underground treasure house, dozens of bone knights quietly gathered at the entrance of the passage, and in front of them was the disappeared Death Monarch Ness.

"Your Highness!" One of the leading skeleton knights half-knelt in front of Ness and saluted him respectfully.

"It's okay! These little mice are fun! Ness smiled at the passage where Chen Kai and the others climbed down, and then waved his hand to let the bone knights leave. If Aurora's bastard doesn't dispel my seed, then I'll have a new minion, and a very good one. Ness glanced towards the cave where Chen Kai had disappeared, and then left the underground treasure vault again, his faint sigh in the air.

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