Tonight in Tanhausen, the boudoir is stretched quietly.

As usual, Charles, who was doing static stretching after exercise, reviewed the knowledge Elizabeth and he had just told him about the underground maze in his mind.

Just now, while Charles was practicing swords with Artoria, Elizabeth was eating fruit while spreading knowledge about underground mazes to Charles. At the same time, he used the peel as a hidden weapon to smash him, in the name of exercising Charles' ability to deal with emergencies.

When Artoria went to pick oranges at noon today, she swept away several orange trees deep in the woods, so everyone can get a few oranges for snacks tonight.

This orange is not small in size, with a sweet flesh and rich juice, which can be used to make a medicine for cough treatment. However, its skin is a bit thick and has a certain toughness. This makes a piece of skin the size of a fingernail thrown by Elizabeth and hit Charles on him.

Artoria also cooperated with Elizabeth, facing the joint attack of the sword and the peel, Charles was in a hurry.

What made Charles the most headache was what Elizabeth said about the underground maze. Charles, who was very curious about this, had to devote some energy to listen carefully.

The underground mazes in the world are mainly divided into natural-appearing mazes and artificial mazes.

The naturally formed underground maze is divided into two types: the maze formed by natural caves and the maze excavated by animals.

Due to various reasons, a large amount of magic power often occurs on this land. If this place is underground, then the magic power will condense into magic crystals after years of gathering.

Among the many monsters, there are many monsters that are sensitive to these magic powers. Many monsters will dig holes to find underground magic crystals based on their sensitivity to magic power.

The most terrifying monster among them is called Voldecano. They are huge in size and can often grow to more than two meters in diameter. Sometimes super individuals with diameters of up to five meters may even appear. At the same time, their body length is often more than ten times the diameter.

This kind of monster, which is also a kind of sub-dragon, is simply a combination of shield machine earthworms and shipworms. They live underground and rely on the magic power emitted by the magic crystal to guide the direction.

When they find magic crystals in some place, they will slowly and firmly dig the soil or stones all the way through with their mouths, and eventually eat magic crystals. They will maintain their life by eating magic crystals and organic matter swallowed into their stomachs along the way.

At the same time, the skin of their bodies will secrete a kind of mucus like a shipworm. After the mucus penetrates into the soil, it will solidify the soil into a hard shell as hard as iron like glue. This is a way for them to avoid gnawing back to the places they have gnawed before.

Their super-strong digestive system can absorb all the useful ingredients in the eaten soil and rock, whether it is moisture or organic matter.

Where they drilled, what was left was fine waste.

After years of age, due to external seepage, the excrement in the passages left by these voldeodons is like the aging and seepage of underground pipelines that often appear in cities, causing soil loss, causing hollows and collapses under the road, which will be washed away by the water flow to the lowest point, causing huge and complex underground passages to appear underground.

After a longer period of time, other hole-punched animals will dig into these underground passages, and gradually more and more creatures will enter through various channels.

First of all, there are some fungi plants that settle down in the dim and moisturizing tunnel.

In this world, some bacteria can absorb carbon dioxide and produce oxygen, while some bacteria will shine.

When various fungi and oxygen increase, some plant-food and omnivorous animals will feed on fungi here, and then spread the fungi in the passage.

Next, some carnivorous monsters will come here, and then form a unique biosphere in this place similar to an isolated island.

Due to the strong magic here, the animals and fungi that have lived here for a long time will produce some mutations, and at the same time, the reproduction ability is enhanced and the individual ability becomes stronger.

When humans come here, they will capture the monsters here to obtain the magic core. If they are lucky, they can also find the new magic crystal.

Since fungi are the lowest level of oxygen providers and the biosphere, adventurers entering the maze will not collect and deliberately destroy fungi such as mushrooms in the maze, unless they are about to starve to eat some.

The maze in the south of Tanhausen belongs to this type of maze.

The artificial maze is generally composed of abandoned magic crystal mines and other mines and deliberately built underground buildings.

When digging mines, humans will deliberately plant bacteria that can absorb carbon dioxide and produce oxygen to maintain the oxygen concentration in the mines.

When these mines are abolished and humans leave, the monsters will gradually occupy this place.

A long time ago, when the war between humans and demons was in a tug-of-war period, the human kingdom built many large underground cities to hide from the demons. Since these underground cities need magic power as energy, the places they are in are places with rich magic power.

After the passage of time, things changed and people changed, these abandoned underground cities also became paradises of monsters.

Finally, Elizabeth concluded, "In fact, the underground maze is a breeding ground for the monsters deliberately left by humans."

"Because the magic power here is strong, the magic core quality of the monsters living here is higher."

Charles, who heard this conclusion, was stunned for a moment, and then Artoria slapped the sky spirit cover with her sword body.

Fortunately, he did not cleverly propose methods such as smoke and water to eliminate the evil god believers, or he would hide in the gangsters in the pig farm, and then he suggested that a torch burn the gangsters and pigs in the pig farm together. If this is the case, it would be strange if those people from all walks of life in Tanhausen who rely on the maze economy to make a living.

Just after Charles finished his day of exercise, he came to the living room of the suite and prepared to drink something before going to bed.

He didn't expect that Elizabeth and Artoria were sitting at the table together, looking through a stack of parchment paper.

Charles walked over, and he was about to speak when Elizabeth stuffed a piece of parchment over.

"Do you recognize this pattern?" Elizabeth asked. "This is what Mifflin sent just now. It is the symbol of the evil god believer. Is there any record of this symbol in your collection?"

Artoria continued, "Although this logo has a bit of the style of a demon before, I'm sure I've never seen it."

Charles looked at the silhouette of the dragon's upper body on the parchment, and recalled it and confirmed that this logo that looked a bit like the Jurassic Park logo had never seen in his two lives. This logo dominated by animal silhouettes is not uncommon in this world. Many noble family heraldry is the silhouette of representative animals.

Finally, he shook his head silently.

Then he asked Elizabeth, “What is the purpose of these evil god believers?”

"They are probably planning something to summon," Elizabeth replied.

"Summoning in an underground maze, I'm afraid that what is summoned is not a huge object." Charles asked, "Otherwise, if you summon it but cannot get out of the maze, you will be happy."

Elizabeth said, "This is the content of the first chapter of the Summoning Technique, but you do not have the talent of the Summoner, so I will only introduce this part to you in the future and just let you understand it."

"It's not that big-sized people are threatening," said Artoria. "Sometimes small individuals are more threatening because of their concealment."

Charles thought for a moment and asked, "Will they want to summon brave men from another world?"

Elizabeth smiled and shook her head, "It's impossible, they can't break through the barriers of the world. At most, they are summoning existences in other dimensions in this world."

Now Charles was relieved. As long as those who were not those with the protagonist's halo were summoned as enemies, there was nothing to worry about.

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Chapter completed!