Tonight in Tamhausen, the boudoir is quietly stretched.

As usual, Charles, who was doing a static stretch after exercise, was reviewing in his mind what Elizabeth had just told him about the underground labyrinth.

Just now, when Charles was practicing swords with Artoria, Elizabeth was eating fruit while telling Charles about the knowledge of the underground labyrinth, and at the same time, she used the peel as a hidden weapon to hit him from time to time, which was called to exercise Charles's ability to deal with emergencies.

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

This orange is not small, and the flesh is sweet and juicy, and it can be used to make a cough treatment. But its skin is a bit thick and has a certain toughness. This caused a piece of peel the size of a fingernail to be thrown by Elizabeth, and it hurt a lot to hit Charles's body.

Artoria also cooperated with Elizabeth, facing the attack of the longsword and the peel that cooperated with each other, leaving Charles scrambling for a while.

The biggest headache for Charles is what Elizabeth said about the underground labyrinth. Charles, who was very curious about this aspect, had to devote his energy to listen carefully.

There are two main types of underground labyrinths in the world: naturally occurring labyrinths and man-made labyrinths.

There are two types of underground labyrinths formed by natural caves, and labyrinths excavated by animals.

For a variety of reasons, it is common for a large amount of magic to gather in a certain area in this land. If the place is underground, then the mana will condense to form a magic crystal after years of accumulation.

Among the many magical beasts, there are many magical beasts that are sensitive to these magical powers, and many magical beasts will dig holes to find magic crystals underground with their sensitivity to magical powers.

And one of the most terrifying magical beasts is called Voldemort, their size is huge, often can grow to a diameter of more than two meters, and sometimes even appear up to five meters in diameter super individuals, and their body length is often more than ten times the diameter.

This kind of demonic beast, which is also a kind of wurm, is simply a combination of shield machine + earthworm + ship maggot, they live underground, and rely on the magic power emitted by the magic crystal to guide the way.

When they find a magic crystal in a certain place, they will slowly but surely dig through the dirt or stone with their mouths, and eventually eat the magic crystal. They sustain and hydrate by eating magic crystals and the organic matter they swallow along the way.

At the same time, the epidermis of their bodies secretes a mucus like a ship maggot, which seeps into the soil and condenses it into a hard shell like glue, which is a means for them to avoid gnawing back to the places they used to gnaw on.

Their super-powerful digestive system absorbs all the useful components of the soil and rocks they eat, whether it's water or organic matter.

Where they have crept, they leave behind fine pieces of excrement.

After many years, due to external water seepage, the excrement in the passages left by Voldemort is like the aging of underground pipes in the city, which causes soil erosion, causing cavities and collapses under the roads, and will be washed to the lowest point by the water flow and silted, resulting in huge and complex underground passages underground.

Over time, other burrowing animals will dig into these underground passages, and gradually more and more creatures will enter them through various means.

First of all, there are some fungi that make their home in the dark, moisturizing tunnels.

In this world, there are some fungi that can absorb carbon dioxide to produce oxygen, and some fungi that emit light.

When there are more fungi and oxygen, some herbivores and omnivores will feed on the fungi here, and then spread the fungi in the tunnel.

Next, some carnivorous beasts will also arrive here, forming a unique biosphere in this isolated island-like place.

Due to the strong magic here, the animals and fungi that have lived here for a long time will have some mutations, and at the same time, the ability to reproduce will increase, and the individual ability will become stronger.

When humans come here, they will capture the monsters here to obtain the magic core. If you're lucky, you'll even find a newborn magic crystal.

Since the mushrooms are here as oxygen providers and the lowest level of the biosphere, adventurers who enter the labyrinth will not collect and deliberately destroy the mushrooms and other fungi in the labyrinth, unless they are dying of starvation.

The labyrinth in the southern part of the city of Tamhausen falls into this category.

The artificial labyrinth, on the other hand, is generally composed of abandoned tunnels such as the Magic Crystal Mine and deliberately built underground buildings.

When humans dig mines, they deliberately plant fungi that can absorb carbon dioxide to produce oxygen to maintain the oxygen concentration in the mines.

When these mines are abolished and humans leave, the monsters will gradually take over the area.

A long, long time ago, when the war between humans and demons was in a tug-of-war, the human kingdom built many large underground cities to hide from demons. Since these underground cities need magic as an energy source, they are located in places where magic is abundant.

At that time, after the passage of time, things and people were different, these abandoned underground cities also became a paradise for Warcraft.

In the end, Elizabeth concluded: "In fact, the underground labyrinth is a breeding ground for magical beasts deliberately left by humans. ”

"Due to the strong magic power here, the magic cores of the demonic beasts that live here are of higher quality. ”

Charles, who heard this conclusion at that time, was stunned for a moment, and then was slapped by Artoria with the blade of the heavenly spirit cover.

Fortunately, he didn't come up with a method such as smoke and water irrigation to eliminate the cult god, otherwise the gangsters were hiding in the pig farm, and then he proposed a fire to burn the gangsters in the pig farm along with the pigs. If you really want to do this, it's no wonder that people from all walks of life in Tanhausen City, who rely on the labyrinth economy to eat, don't beat him to death.

Just after Charles finished his day's workout, he went to the living room of the suite to get ready to have a drink before going to bed.

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

Charles walked over, and just as he was about to speak, Elizabeth shoved a piece of parchment over him.

"Do you recognize this pattern?" asked Elizabeth, "this is the sign that Mifflin just sent to him, and it is a sign of the cult god, is there any record of this sign in your house collection?"

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

Charles looked at the sign on the parchment that was dominated by the silhouette of the dragon's upper body skeletal and thought back, making sure that this sign was a bit like a Jurassic Park sign he had never seen in his life. And this kind of symbol based on the silhouette of animals is not uncommon in this world, and the family coats of arms of many nobles are the silhouettes of representative animals.

Finally, he shook his head silently.

Then he asked Elizabeth, "What is the purpose of these cultists?"

"I'm afraid they're planning something to summon. Elizabeth replied.

"Summoned in the underground labyrinth, I'm afraid it won't be a huge object. Charles asked, "Otherwise, if you summon it and you can't get out of the labyrinth, then you will have fun." ”

Elizabeth said: "This is the content of the first chapter of summoning, but you don't have the talent of a summoner, so I will only introduce this part to you in the future, so that you can have an understanding." ”

"You don't have to be huge to be a threat. "Sometimes small individuals are more threatening because of their stealth. ”

Charles thought for a moment and asked, "Could it be that they are going to summon a brave man 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 summon beings from other dimensions in this world. ”

Now Charles is relieved, as long as those people with the aura of the protagonist are not summoned as enemies, then there is nothing to worry about.