Edward spent time with his family for the next few days without announcing his return. He also watched the development of the war from the shadow. Then, three days later, he summoned Havika Kainalu to the palace for his era-defining invention.
Havika was no longer a young teenager. Fifteen years ago, he was a Tier 0 Arcanist with mediocre ability. Although his family was proud of him because he was the only one with magical powers, Havika was under a lot of pressure since he knew the level of his talent.
Every day he dreamt of being extraordinary and making his family proud. But, he was limited by his ability. Then, everything changed after a teacher encouraged him to enter a Rune Mathematics Competition.
Although he was initially hesitant, after the teacher insisted, he thought there was nothing to lose. And to his surprise, he discovered his talent in that field by winning the competition.
Then, everything changed so fast that to this day, Havika felt it was a dream. He was placed in a course to graduate early. The government granted him a Dragon Potion to elevate his magical talent.
He was granted high-level access to information for all his research programs. Havika then used Rune Mathematics to make many ground-breaking discoveries that allowed Arcanists to have a fundamental understanding of the universe.
Additionally, his formula allowed people who were not magically gifted for spells but excellent at mathematics to reach the level of casting instant spells.
Instead of using things like talents, imagination, and feeling, some Arcanists could now use pure mathematics to cast their spells using the Arcane Rune System, elevating their power and status in the Empire.
With these formulas, Havika acquired one of the highest statuses any Arcanist could receive in the Empire: he became a Tower Master. With his newfound power and wealth, Havika bought Dragon Potion for his family, allowing them to walk the magical path. And he even reached Tier 5, about to enter Tier 6.
Then, he focused on his most significant discovery.
Havika stood before a tall golden door. He took a deep breath to calm down before taking a step forward–which made the door open automatically. As he walked inside the palace, he saw two people waiting for him, and he recognized them as the Arcane Emperor and the Empress: Delacour and Granger.
"Your highness," he bowed with the proper etiquettes. Havika was slightly surprised as the Emperor barely showed up in the past few years. Although there has been some national address, it is common knowledge amongst the powerful Arcanists that the person who spoke was most likely a clone. The real Emperor had disappeared to some unknown dimension as he did before.
However, after seeing the person before him, Havika felt he was the real deal.
"There is no need for formalities," said Edward as he walked next to him and patted his shoulder. "The last time I saw you, you were only 16."
"Your majesty, you know me before?"
"There is no point in hiding from you. We detected your talent way long before you even did."
"The competition."
"That's right. Our divination department detected you would change the world, so we ensured your potential was developed properly."
"Thank you for taking care of me," Havika replied with gratitude.
"Alright, show me your discovery. From now on, treat me as a pursuer of the truth like you, not an Emperor."
"Yes," Havika replied before activating his watch, showing a 3D holographic image.
"Using Rune Mathematics, I've created a model of the universe. I've perfectly calculated its scale, mass, volume, density, etc. However, this is the least interesting thing about my model.
"I have considered all dimensions–large and small–that make the universe, alone with parallel timelines. As you can see, with this model, we can calculate the location of all dimensions and parallel universes."
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Havika was excited as he explained his model. He was not exaggerating as his model allowed the Empire to discover all dimensions and navigate through the infinite parallel universes.
"But that's the end. After expanding the model's scope, I've discovered other planes of existence."
Edward squinted his eyes as he remembered the demons that Hermione summoned with her talent. The devil said it was from the Abyss Plane.
"Imagine you could go outside of our universe. There, floating in nothingness, is what I call the Astral Realm."
'Another word I've heard before,' thought Edward as he remembered Albion mentioned this to him after he visited the Full Metal Alchemist Universe.
"And containing inside the Astral Realm are countless planes of existence; some as big as our universe, and maybe even bigger. Each plane could have different civilizations, races, cultures, power systems, and many other differences.
"With my model, I've calculated the location of two planes. Unfortunately, I do not have the authority or resources to explore."
"We are currently short on manpower, so you will have to wait a while," replied Edward with a genuine smile as he looked at the model: this was indeed a breakthrough that would impact the Empire for all eternity.
"Your discovery is beyond magnificent. Your name will forever be immortalized in the history book."
Havika became a little embarrassed after hearing this. "The other Empresses said the same, but I think they are exaggerating."
"They are not," replied Hermione. "Forget your discovery's long-lasting impact; think about the short-term ones. After this catastrophe, the Empire will most likely have complete control of the Milky Way Galaxy.
"At the same time, the Tier 10 Gods in the universe now have eyes on us, so we will have to isolate ourselves as a form of protection.
"The resources of the Milky Way are not enough for us to continue rapidly developing. And now, we can explore other planes to fix this problem."
"I've never thought about that," muttered Havika. The people in his circle have long predicted the Empire would conquer the galaxy after this catastrophe.
However, no one thought the consequence would be isolation to protect the Empire from other powerful entities. And isolation usually leads to depletion of resources–especially with the speed the Empire was developing.
"Once again, we would like to thank you for your discovery," said Edward.
"It is my honor."
After that, Edward spent the next hour asking him about his model before dismissing Havika.
"What do you think?" asked Rowena, who teleported to the room once the family was alone.
"Amazing. How many planes did we discover?"
"There are two more besides the one Havika discovered. We used the Witch Lord you brought back from your previous voyage to divine the position of the Abyss Plane.
"Then, your apprentice, Chloe, used her connection to the Dream Dimension she discovered to find the location of the Nightmare Plane."
"Is there a connection?" asked Edward with a frown.
"Yes. She theorized that some beings are trying to invade our place using the Dream Dimension."
"As expected," said Edward as he caressed his temple. "Let me guess; there is something important about our plane?"
"Correct again. Our plane was once called the Magus Plane, but now, it is referred to as the Cosmic Faith Plane. And it is the only plane with a multiverse; the only plane individuals can reach Tier 11."
"That would explain many things," replied Edward.
There were a few things he could not figure out. Tier 10 Gods needed the faith of an entire universe to reach such a level. Yet, no one has conquered the universe, but there are countless Tier 10 Gods. So, where did they come from?
The answer is that they conquered other planes to reach Tier 10. This information also means there is a vast difference between Tier 10 Gods. For example, the ones who conquered 10 planes and gathered faith as way more powerful than the ones who only conquered one.
Another mystery that Edward solved was why Cronai tolerated the Faith God despite showing dislike for them; it was not simply because she could not actively interfere and deal with them.
They protected the plane from invaders trying to reach Tier 11. Edward could imagine how many hungry Tier 10 Entities could not wait to enter the Cosmic Faith Plane.
"Where did you get this information?"
"We got it from the rubbles of the Intergalactic Federation. We even learn that the Starskin Race is from another plane."
"Interesting," he replied before looking at Hermione. "If your ability allows you to summon living creatures from other planes, we might use it to find these planes."
"I've thought the same."
Edward nodded his head before looking at the model.
'This thing is more valuable than Havika could imagine.'
Then, he began to expand on it even more. He added the Source Wall, which surrounded the entire Astral Realm. Then, he expanded the formula to go beyond the Astral Universe and go into the Void.
He used the location of the three worlds he traveled to and added them to the model. The final version was the Astral Universe which contained many planes–including the one Harry Potter took place, the Abyss Plane, and others.
The Cosmic Faith Plane contained many dimensions: small spaces inside the larger universe, along with parallel universes where every choice someone made created an entire universe.
Beyond the Astral Universe was the Omniverse, where all the anime, movies, games, etc., he saw on Primordial Earth were real and separate universes with their own laws and regulations.
Edward sighed deeply once he finished.
'With this model, I could calculate the coordinate of other Universes and have not to rely on the Akashic Record for coordinates.'