Charles can say that he has lived two lifetimes and has never seen such a dreamlike scene in this underground palace.

The condensed points of light of various magical elements flew like fireflies, and various colors of light illuminated the vast hall.

On the walls and on the ground, the newly grown magic crystals were like wild plants in the spring field, one cluster here, one bush there.

The quality of the magic crystal is directly proportional to the density of the magic elements it contains, if a quail egg-sized magic crystal is only crystal clear, it will only be one or two gold Ore coins, and when the magic elements it contains are so high that there are starlight spots, a thousand gold Ore coins will be sold in minutes.

But the magic crystals here are no longer as simple as starlight, they can even emit a faint fluorescence, and the size of a quail egg can feed Artoria every day for two years.

Charles felt that if he took all these magic crystals to the market and sold them, then he would definitely be assassinated by the magic crystal merchants, and he would not disrupt the market order so much.

But it's okay to take one or two, because there is a huge stone pillar in the center of the palace, on which are engraved a variety of extremely old characters, although the general script and the demon script are incomprehensible because of the evolution of the ancient font grammar, but the elven script can still be understood: "Travelers passing through this place, you can take the treasure that you can hold in both hands, but you must not break the crystal bottle and release the monster that destroys the world!"

Then the ground next to the stone pillar was littered with sparkling crystal shards, which looked like they could be put together into a small bottle.

"Looks like the monster has been released. Charles said, "This should be a special place of sealing. ”

Artoria examined the crystal shards on the ground and said, "Judging from the dust on it, this bottle has been broken for a long time, and I'm afraid that the monster has left, maybe it has been destroyed." ”

A voice suddenly sounded: "Unfortunately, I'm still here." ”

The voice sounded neither male nor female, far and near, very ethereal.

Artoria immediately raised her sword to defend herself, but she didn't notice the enemy's position, and Dullhair was spinning in circles clockwise like radar.

At this time, Charles said helplessly: "We were careless, and now we are in its body." ”

The voice rang out again: "Pretty smart little guy." ”

A faint white mist appeared in the underground palace, enveloping every inch of space.

The Ex curry stick in Artoria's hand glowed golden, but no matter how much she swung it, it didn't have the slightest effect.

Charles shook his head and said, "Give up, so many magic elements are flying around without hindrance, obviously magic attacks are ineffective against it." ”

"If the physical attack had worked, it wouldn't have shrouded us. ”

Artoria tried in vain a few more times, and finally had to give up and stand there with her sword on her hand.

The voice sounded again: "It's so clever, it's kind of interesting." ”

Charles asked, "Which one are you?"

"You humans call me the Nightmare King!" replied.

"What?!" exclaimed Charles, "you are the legendary Nightmare King?"

The Nightmare King's voiceless voice asked, "You know me?"

Charles replied earnestly, "Legend has it that a long, long time ago, twelve dark elf witches summoned you with a maiden as a sacrifice. However, during the ritual witches, they found that the energy provided by only one girl's life was not enough, and in order to avoid the defeat of the magic, the witches killed each other, and in the end, only the sacrificial girl on the altar survived. The summoning ceremony was successfully launched, but the sacrificial girl was dying, so the girl and you who appeared made a contract, agreeing that you would resurrect the girl, and the price would be that the girl would dedicate her body to you forever after 13 years. Thirteen years later, the story of you, who took possession of the girl's body, was written into a book, which has survived to this day called "The Black Elf Bible". ”

"Hmm......" The Nightmare King's voice seemed to have a little emotion in it, sounding very satisfied, "what have you humans recorded about me?"

Charles continued: "It's mostly stories about you inducing your sister-in-law to seduce your younger brother and instigating your son to possess your stepmother. ”

"Hmph......" the Nightmare King was a little dissatisfied, "Isn't there a story about me killing the king?"

Charles shook his head, there really wasn't one in the book.

"I knew it. The Nightmare King said, "After they sealed me, they will definitely slander me, covering up the fact that I killed one of the three kings on the continent at that time." ”

"Bring me the book you mentioned, while your woman stays here as a hostage. ”

Charles was stunned for two seconds before he came back to his senses, and hurriedly defended: "She's just my friend, not my woman." ”

"Humans just love duplicity!" said the Nightmare King, "and I can feel that you have appeared many times in her dreams. ”

Charles looked at Artoria in surprise, there is such a thing?!

What's more, isn't it involved in Reimu's business?

Thinking of this, he was not afraid, with Reimu's character, it was strange that he had no strength to kill him if he had conflicts with him.

Artoria just stood there with her sword on her hand, her face wearing an oxygen mask and her expression indistinct, her body motionless above her head.

The Nightmare King continued: "I've seen a lot of humans like you, and when I dream, I think about each other, and when I wake up, I'm duplicitous and distant, and I don't want to admit my heart, all I do is let those humans face the deepest desires of their hearts. ”

Charles was speechless, that's why it instigated his sister-in-law to seduce his brother-in-law or something?

The Nightmare King seemed to sense Charles' disapproval of his words, and said, "Hmph, hmph...... I'll show you how she gets along with you in her dreams!"

The hairs on Artoria's head suddenly shook violently, but after a few moments they wilted.

The faint white mist around suddenly changed, and it became a place of birds and flowers.

In front of the two, the shadows of "Artoria" and "Charles" in everyday clothes appeared.

Zhenru looked at King Zhendu, shook his head helplessly, and sighed deeply.

In the shadows, "Artoria" has a leather whip in her hand, and she whips "Charles" hard again and again.

And that "Charles" was digging ditches in the ground with shovels and sweating.

At this time, a figure composed of a vague white mist appeared in front of Artoria, and it asked curiously, "Why did he offend you, as for this, is it okay for you to make me embarrassed like this." ”

Charles's cold sweat broke out, and he hurriedly said: "If you are dissatisfied with me, everyone go out and talk about it, don't hold it in your heart." ”

It's just that the Nightmare King said coldly, "Get out, can't get out!"

"You only have one choice, that is, only one of you can live, and then sacrifice your body to me!"

The sudden appearance of the villain's speech surprised the two, Charles's brows furrowed, and said: "It seems that you can't get out now, here is the double seal, although the crystal bottle is broken, but this palace also has a seal." ”

"Your plan is to use the life force of one of them as energy, and allow yourself to possess the other person, so that you can break through the seal. ”

The Nightmare King sighed, "What a clever little fellow, I'm a little reluctant to kill you." ”

After it finished speaking, the white mist around it suddenly thickened, causing the two of them to feel tremendous pressure.

Charles took two steps and felt like he was walking in the mud.

The Nightmare King said, "Let me see how long the air inside that tin can lasts, and see which of you can suffocate first!"

Charles smiled "hehe" and said, "Whatever, do you mind if I walk around?"

The Nightmare King just sneered twice.

It's just that Charles didn't panic at all, and Artoria was even more calm, which made it a little strange.

"Call!SOS!" Charles called the gods helpline as he studied the crystals.

"What's going on?" Reimu quickly replied.

"Do you know how to destroy the Nightmare King?" asked Charles.

"Why did you come across it, the crystal bottle broke or did it flee to the ground. Reimu asked rhetorically.

Charles replied, "The crystal bottle fell from the stone pillar and shattered, and it is still in the underground palace full of magical elements. ”

Lingmeng said helplessly: "According to what I said, it won't be so much trouble to glue the bottle tightly, can you believe that the earthquake shook down such an important seal bottle and broke it? You go to the stone pillar to look for it, and when you're done, find a place to put it away, that's it." ”

Charles dug out clusters of high-quality magic crystals from the ground in the increasingly viscous white mist, and he might use them at some point.

He slowly walked to the stone pillar and found that one cluster of magic crystals was a little different, the other magic crystals were fluorescent, but it was starlight, and the quality was much worse.

Sure enough, there was a big hole under this cluster of magic crystals.

"Stop!" the Nightmare King suddenly shouted, his voice filled with horror.

Naturally, Charles wouldn't stop, and he pulled out a huge oiled paper bag from the hole.

I don't know how many years this oil-paper bag has been here, but it looks like new.

"I think we can work together!" the Nightmare King shouted, but instead of decreasing, the pressure on the White Mist increased.

With all his strength, Charles opened the oiled paper bag as fast as he could, and inside was a crystal bottle carved with intricate patterns.

"Stop, or I'll kill her!" The Nightmare King threatened Charles with Artoria's life.

It's just that Charles is unmoved, he has already seen that this nightmare king is strong on the outside, and there are not many ways to deal with them.

The lid of the crystal bottle was opened, and it suddenly turned into a vacuum cleaner, and the huge suction force sucked in the white mist around it.

The Nightmare King didn't even have time to say his last words before he was sucked in by the spare sealing bottle.

The thick white mist in the crystal bottle churned violently, and it seemed to be restless, but there was nothing that could be done.

Charles looked around, he didn't dare to put the seal on top of the pillar again, he had to change places.

Just looking around, it's still appropriate to put the hole in the ground with the oiled paper bag just now.

He re-wrapped the seal bottle with oiled paper, put it back in the hole, and measured the size again.

The cave was surrounded by solid rock, and this was when his teleportation technique came in handy, and several spare swords were embedded in the rock, forming two layers of "well" around the oiled paper bag.

Finally he disappeared for a while, and soon returned, bringing back a few bags of cement and a few buckets of water.

So the Nightmare King added another layer of physical seals.

After doing this, Charles left with Artoria, and by the way, he collapsed the passage leading to the underground palace in the middle of the altar, and poured a large amount of cement mortar.