In the Hogwarts expansion site here, just like Ravenclaw built a secret room in the Black Lagoon before, the underground of Harris Castle on the island in the middle of the lake was also designed and arranged here after the upstairs theme was built to a certain extent.

In this huge and spacious underground space, the area that needs to be constructed is very huge, and its internal space is very high, it is like a palace for giants, and in such a vast space, there is not a single pillar to support, and it is simply reinforced by huge magical energy. In the center of this vast underground space is a huge hexagonal platform that requires seven flights of steps to ascend.

Outside the center of the corners of the hexagonal platform stood six thick obsidian pillars, engraved with layers of inscriptions, and at the top of these massive obsidian pillars was a pyramid-shaped object of different colors suspended from the top, and each side of the pyramid was carved with an omniscient mark using a triangular structure, and the pupils in the all-seeing eye on it were moving to scan the entire platform.

On top of this huge platform stood a circular sphere with a diameter of 150 feet, this magic device looked very much like a giant crystal ball, and if you look down from above, you can see that these six pillars are just standing at the six vertices of a huge hexagram, and the huge ball stands in the middle of the hexagram.

At this time, three Alan and three Luna are busy on this platform.

Because it was under construction, the whole chamber was empty, and there were no decorative items other than the building materials and tools needed for construction. The basic building materials of the chamber and the materials used in the new castle of Harris upstairs are similar to the blast-resistant walls and floors in the training room in the original Ravenclaw Tower, made of heavy stone and alloy, except that in this chamber, the ancient magic scripts carved with silver thread were hand-drawn by Alan and Luna.

The other construction workers working in the chamber were not wizards, but Eris Dementors clad in raven feathers, working independently as a key secret project, floating above the walls, making them look like flying insects from a distance.

These dementors, who look like they are rotting, are covering the surface of the heavy stone walls with pieces of metal carved with ancient scripts - although they have changed their shapes, this does not allow them to use magic like wizards, and they use their scabbed palms to pick up the various tools that the Umbrella Company has equipped for the skimmers, and use the magic of these magical creations to complete the construction.

Unlike wizards who use a wand to work from start to finish, these Dementors often need to float up and down to change different tools when facing different projects, and the progress is a bit slower than that of wizards.

The black smoke enveloped Allen and them, they floated in the air, moving their arms slowly and slowly in different directions around this huge circular sphere, using the magic power on their fingers to carve very complex magic patterns on the surface of this sphere, focusing all their attention on the circular sphere in front of them, because the production process was very complicated, at least until the overall portrayal of a small part of the sphere was completed, he could not stop, nor could he make mistakes, he had to do it in one go, otherwise the whole crystal ball would be scrapped.

Even though Allen's forehead was already drenched in sweat, he didn't bother to wipe it.

Luna did not wear Luna's famous hat on her head, but the famous crown of Ravenclaw, she and her doppelgangers floated in front of an obsidian pillar on the periphery of the round platform, her expression was focused, she changed her trance-like appearance, some raised silver eyes looked intently at the obsidian pillar in front of her, she moved slowly and raised her arm, very carefully and meticulously carved the obsidian in front of her with complex magical patterns, which made the radish earrings on her ears gently shake with the movement of her arm carving, from the side, her face was slightly sweaty, which caused the reflection to make her face look more contoured, quite a bit of Rowena Ravenclaw.

Eren glanced at her and then took his gaze back, unable to take his eyes off her for a moment, relying on his memory and the control of his muscles because of alchemy, so that the movements of his hands did not stop.

Luna, who seemed to notice Alan's gaze, glanced at Eren from behind the obsidian pillar, and then focused her attention on the obsidian pillar in front of her, and the crown on her head also floated to the top of Eren himself who was staring at her, and then, in a singing voice, she said, "Do another bad one... There was no way to explain to Hermione when she reported the bill, and there was no good reason to fool her this time. ”

"There's so much more to do, inevitably... When the time comes, just say that you can do bad. The crown brought Alan some clarity and made him turn his head back, but he didn't stop, "You've lost weight lately, and it seems to have gotten more beautiful these days." ”

"Side effects of divine powers. Luna's ethereal voice echoed through the empty room, "Lately, there have been more wizards who believe in me than there have been more intelligent creatures than before, so I have modified some Dementors as minions. ”

"And such a good thing? Then the more side effects, the better...."Alan said without stopping, "After defeating Voldemort in a duel before, a small number of Dementors are back under the control of the Ministry of Magic, and if you still need it, you don't have to catch it yourself, and someone will send some more... You know the Ministry of Magic doesn't trust them right now, and the one behind this creature... Let me only dare my father to plant them in unimportant places. ”

Later, for a while, only the sound of Dementors could be heard in the empty room.

But after a while, Helena's milky, translucent form came down from the ceiling and through the ceiling above the huge round sphere: "Father, mother, grandmother dare not disturb you with the mark, let me come and have a look, and ask you to go back and eat tonight..."

"Helena, I told you not to come in casually!" Before Helena could finish her sentence, Luna's rare voice raised her voice interrupted her, "Morgan Lefay must have explained when he asked you to come over, let you see the situation first, don't disturb your father's work." ”

The female ghost was startled by her mother's sudden reprimand, her transparent body trembled, and then floated in the air and nodded in a daze, looking down with some fear and secretly peeking at the mother in front of her, who had taken out the temperament of the founder of the Eagle Courtyard with a stern but somewhat intimidating personality.

"Why are you yelling so loudly...."Alan turned his head to glare at Luna, he continued to hold the carving but his eyes were on his daughter, "Helena, this big ball is the Mither Core, although it is not dangerous today, but when it is activated, anyone who touches it will be killed instantly, and any item will be dissolved immediately... Even if you're undead, you'll be destroyed in no time..."Alan softened his voice, "So Helena, don't be afraid, your mom just cares about you. ”

"Tell your grandma, we probably won't be able to go back until school starts. Luna's demeanor returned to normal, and she gestured to the snacks and Cokes stacked aside, "Your dad and I have prepared snacks. ”

Seeing that her mother did not deny her father's statement, Helena's tense transparent body relaxed, she carefully avoided the obsidian pillar in front of Luna, and floated beside Luna, she did not speak, but her expression seemed to be a little happy.

"The reason it's been so long is because it's not just here... Similar chambers have been built throughout Hogwarts. Alan continued uncomfortably, "... But you don't have to be tied up, go to the study empty, I'll mark the location on the map for you, and you can write it down yourself. ”

"Thank you, father," Helena asked, a little confused, "why do you do so much?"

"Because the sphere of influence of a single Mitheric nucleus is only one mile. Allen's main body finally finished drawing the magic pattern of the small area of the Mithic energy core in front of him, and he floated backwards for some distance, looking at his masterpiece, "It's like this magic text only covers a small area of the entire sphere, and this time Hogwarts has a lot of expansion scope, and it will take a lot of work... In order to catch up with the start of school, I can't go back for the time being. ”

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