The Forbidden Magic Laws of a Fallen Princess

Updated: May 10, 2026

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Chapter Summary

The Forbidden Magic Laws of a Fallen Princess• Chapter 413

During this time, Wenya, Mi'er, and the Demon King Terantis began searching for information everywhere, because they would not allow us to take any risks, even if there was the slightest bit of bad news. It seems that the Demon King's castle is indeed very well-built, just like the buildings of the Beginning Kingdom, which are indestructible. Strangely, there weren't many Demon King soldiers guarding the Demon King's castle, as if they were very confident that it would never be breached.

"This is...

a goddess?

"At this moment, Demon King Terantis couldn't help but frown slightly.

It seems he could indeed sense the divine power within the goddess Herilia, which is why he spoke directly.

"Hello everyone, my name is Herria.

I am indeed a goddess, and I am also the guardian goddess of Ivy.

Please take good care of me.

"As she spoke, the goddess Herria was in the air, pulling at her skirt and striking a noble pose.

"The guardian goddess...

could it be her...

"At this moment, Elena must have suddenly remembered that after we were blown away by the Black Dragon God, although we were scattered, we were basically all safe and sound.

Perhaps it was because of the goddess Herilia in front of us.

Since that's the case, I'll tell everyone everything, including the resurrection of the goddess Herilia.

However, I cannot tell everyone about the forbidden laws of magic, because they are forbidden, so I cannot express them through actions or words.

Therefore, I can only say that it was an opportunity...

At this moment, everyone was stunned, completely absorbed in what I was telling them.

Sigh, really, I do feel like it's part of a story.

"So, this goddess named Herria is now your contracted witch?

"Upon hearing this, the Demon King Atlantis couldn't help but make a guess.

"Hmm...

right, Sister Herria.

""That's right, really.

I was sealed in a cage for so many years, and it was thanks to Ivy that I was able to get out now.

So, I also hope that everyone can get along well.

"Sure enough, the goddess Herilia was quite eloquent, and soon she was all mingling with everyone.

However, things became easier after that, because the demons present did not know that Demon King Terantis had parted ways with the God of All Evil and Demon King Orpheus, as this would be bad for both the Demon King's city and the outside world if word got out.

The fear is that many opposing forces will emerge at that time, so Demon King Atlantis could easily enter the Demon King's castle.

Now, I have severely injured the Demon King Ophisto, so he is absolutely incapable of interfering with anything we do.

Therefore, rescuing my last harem member, Luo Yi, is not actually too difficult.

However, my body has been under considerable strain due to the forbidden resurrection spell I cast earlier, so I need to rest for another two or three days.

During this time, Wenya, Mi'er, and the Demon King Terantis began searching for information everywhere, because they would not allow us to take any risks, even if there was the slightest bit of bad news.

In fact, Demon King Terantis is actually a very kind-hearted demon king.

As for me, through the power of Alice's Staff and the magic of the goddess Herylia, I began to continuously heal the internal injuries caused by casting this resurrection spell, and repair the possibly damaged meridians in my body.

Indeed, although I didn't feel anything unusual this time, a proper examination revealed quite a few symptoms...

So these past few days I've just been resting and recuperating in my room...

doing nothing, because, how should I put it, I'm afraid that if I do anything, my body will experience more problems.

If things go wrong during the battle with the Demon King's castle, that would be terrible.

So now you should get some rest...

However, these three days felt like being in a cage, and it was quite difficult to endure.

The main problem was that Lila had inexplicably started practicing and sparring with Elena every day.

Sigh, I was left alone in my room...

Sigh, so boring!

Finally, the three days were over, and I was finally free.

My body felt completely refreshed.

Now, even if I were to encounter a war, I could fight with all my might.

Since that's the case, we've already rented this hotel, put most of our luggage down, and even bought a slightly lighter carriage, intending to enter the Demon King's castle.

Luo Yi, I hope you're safe and sound and waiting for us to rescue you!

Chapter Twenty-Three: Arriving at the Demon King's CastleOverall, the demon realm is essentially the same as the world inhabited by humans.

Just like the Beginning Kingdom and the Kingdom of Edela, the town's entrance is indeed a commercial area, and further ahead lies the residential area.

However, there are just too many residential areas, and as far as the eye can see, they seem to stretch on and on.

They had been traveling from daytime to nighttime...

and had only just arrived at a corner of the mountain below Satan, the main city of the demon race.

Now, this demon race is freaking huge...

It's clear that the two sides of Satan City, beyond the town, are the industrial and manufacturing areas of the demons, demonstrating that the demons possess a level of craftsmanship comparable to that of the dwarves.

While the dwarves are certainly better at crafting exquisite workmanship.

"It seems it's getting late.

Why don't we find an inn to rest today?

Actually, it's at least two more days' journey from Satan City to the Demon King's Castle.

""It's so far away...

"After hearing what the Demon King Atlantis said, I couldn't help but sigh.

"Of course.

The history of the demon race is very long, and it is formed by the union of multiple races.

So, once you enter the demon castle, try not to leave my side, otherwise you will definitely be attacked.

Besides, most of you are human.

"At this moment, Demon King Terantis said with a smile.

"Alright, now that we're on your turf, we'll do whatever you say.

"Honestly, I had no choice but to keep going.

If something went wrong on the way back, getting injured would be a minor issue, but if the whole team was wiped out...

the consequences would be unimaginable.

"The demon race possesses a dual barrier, and this is the first time I've witnessed the demon race's domain...

It seems this has truly been an eye-opening experience.

"At this moment, the goddess Herilia, sitting on my shoulder, looked at the scene of Satan City outside the bear carriage and couldn't help but sigh.

"Okay, we're here.

"Just then, Demon King Terantis found another demon inn and, once again, gave him two blue coins.

I learned that these two blue coins are the currency of the demon race, equivalent to gold coins.

In other words, the room we live in was basically bought by the Demon King Atlantis.

Furthermore, vegetarian food is something that everyone who comes here to stay must prepare.

If a customer who has purchased two rooms arrives and the restaurant doesn't prepare meals, the restaurant will be in trouble if they file a complaint.

Therefore, these two cyan demon coins are extremely useful.

As expected, Demon King Atlantis is also a very wealthy guy...

Sigh, really, as expected of the Demon King's strategist, he is even very meticulous about money.

After that, we didn't rent a house that day and basically just rested in the carriage.

Because the closer you get to the Demon King's castle, the fewer shops there are, and the fewer people there are.

Fortunately, we could see some vendors, perhaps operating secretly, so we could also see some vegetarian boxed meals.

Although it didn't taste very good...

Well, all in all, life isn't too bad right now.

Finally, after three days, we saw the majestic and imposing Demon King's castle, which was entirely black.

Furthermore, there are two statues of black demon kings with long arms on either side of the castle.

It instantly exuded the majestic and domineering aura of the Demon King's castle.

It seems that the Demon King's castle is indeed very well-built, just like the buildings of the Beginning Kingdom, which are indestructible.

However, now that we're here, we can't leave empty-handed.

We must rescue Luo Yi this time, and also try to destroy the physical body of the God of Ten Thousand Evils, which is the place where the soul is sealed.

If we can really destroy it, then this great battle will be completely over.

"Alright, let's head into the city then.

"At that moment, Demon King Terantis teleported directly to the roof of what should have been the bear carriage and sat down.

Then I heard a snap of fingers.

The massive, black metal doorway of the Demon King's castle, whose walls seemed indestructible, opened directly.

Then, two strong soldiers from the Demon King's army quickly stepped forward to take a look.

When they saw Demon King Terantis, they immediately stood up straight and bowed respectfully.

Indeed, she is quite glamorous as the Demon King.

Once inside, they discovered that the Demon King's castle wasn't just big, it was incredibly big.

Because when we arrived in front of it, we couldn't see the top of it at all when we looked up.

And here, ghosts seem to flash by from time to time, instantly giving me a chill down my spine.

It seems that the demon race includes not only the Demon King's army, but also the undead race.

It seems that they are indeed quite terrifying.

However, now that we've come this far, we can't back down.

So, we must muster our courage and prioritize rescuing Luo Yi, while destroying the body of the God of All Evil is secondary.

"Alright, now that we've arrived at the Demon King's castle, Princess Ivy, please leave your Kumaru here.

We'll proceed on our way.

"At this moment, Demon King Terantis jumped down from the bear carriage and said respectfully.

That's true, there are stairs in the next area, so vehicles like cars definitely can't get in.

"Ok.

"Left with no other choice, I left Kumaru at the entrance to the Demon King's Castle.

At least he could keep an eye on things for us, and if anything unexpected happened, he could help us out.

We then walked through the dark, double doors of the Demon King's castle.

Strangely, there weren't many Demon King soldiers guarding the Demon King's castle, as if they were very confident that it would never be breached.

If a powerful enemy were to attack the Demon King's castle, I don't believe it could hold out.

However, the Demon King's castle is really far from the mainland.

Perhaps it is because it has always been hidden that it is relatively safe, and therefore no defensive measures have been taken.

That's incredibly careless.

We then walked through a very spacious corridor.

Indeed, the building was still predominantly black, and the lighting inside was particularly dim.

If there's something in front of you, you'll definitely trip over it because you can't see it.

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