7 Years later
It has been seven years and I am about to turn 11.
In all of this time I stayed away from Diagon Alley and only had Minney visit a few times to get some potions to fix my health.
The other thing I did was visit 12 Grimauld Place, the Black family mansion to look for solutions to my bounded core as I couldn't break it without alerting dark lord Dumbles.
My only solution was to modify it so that I could open and close it.
I would open it for my magic maturity and then close it back up so the old goat doesn't get suspicious.
Flashback
I needed to get more information about magic and especially a way to unbind my core.
"KREACHER"
Suddenly the old elf popped into my underground lair.
Kreacher: "What do you want with Kreacher"
"I am Harry James Potter and my grandmother and godfather were part of the Black family. That makes me the closest to the main family making me eligible to be heir Black. I want you to take me to Black manor, I need to see the library."
Kreacher: "Kreacher will not help filthy half blood. You stay away from Black Manor or I'll fight you"
"If you help me I'll help you get rid of the locket"
With that he agreed and I was able to access the library after Walburga Black yelled at me for ten straight minutes.
I will have to claim my heirship for the Black and Potter families after I am introduced to Diagon Alley with Hagrid so I can control the wards of this place and don't have to rely on Kreacher.
I scoured the library for information on core bindings, soul magic, and even rituals to help me overcome my problems.
After finding what I was looking for I took the locket from Kreacher and told him that I would call him when I finished cleansing it and to continue checking out the library.
I should create a spell that lets me scan books to make my life easier.
Back to the present.
With everything I learned I have decided to consume the soul piece in my head using a bit of soul magic and my mind magic before my 11th birthday.
I also already figured out how to undo the lock on my core.
I actually took inspiration from the lock on my mind from when I was younger and applied it to my core so that I could unlock and relock it with my specific mana frequency and different pulses so no one could interfere with it.
I learned from a tome in the Black family that this was something similar done in ancient times on children to put more pressure on their cores during their growth to increase magic density and volume.
With that done I found a set of rituals that I could do on each birthday of my three maturities.
For this first one I will be using the locket to represent the soul, dragon blood for the body, and a magical raven for the mind.
Before I could think about the rituals I had to get rid of the soul piece in my head.
I entered my mindscape which was the Wayne manor on the top of the hill.
I even had my own Alfred who I made into a pseudo secondary mind whose sole purpose is to organize memories and direct the defenses if there is an intruder.
I entered the Batcave through numerous different securities I designed and sat down in front of the bat computer which holds all of my memories.
I created something similar to the mirror dimension where the Batcave currently is.
In the normal dimension I have a normal mansion without the Batcave.
Inside the normal mansion is a safe room with sliding metal door, wards, and even magical and electrical lines running through the walls to keep out outside interference.
This holds a copy of fake memories and is also used to upload any memories I can from other people to make sure there is no influence on my mind.
I could still improve my mindscape defenses but this should be enough for what I have to do.
With that I used my very limited knowledge of soul magic which is basically limited to just slightly powering my spells with my own soul and influencing outside soul just enough for the soul piece.
With that I dragged Voldemort's soul into my mindscape.
POV Voldemort
I had just tried to kill the baby and it rebounded and ended up killing me.
I tried to posses the kid so this must be in his mindscape.
"Come out child and I will give you unlimited power"
I heard a chuckle from muggle contraptions around a mansion.
Speakers: "Haha, what are you gonna do Tommy boy, give me a slave mark like the rest of your death wankers"
"HOW DO YOU KNOW THAT NAME"
Speakers: "Does it matter Tom, your in my home ground now and I'm going to destroy you"
Two bat jets and a few helicopters flew up from behind the mansion and started firing missiles, lasers, and one of them just crashed into me.
"WHERE ARE YOU"
Nobody answered so I threw up protectiosn and started shooting down the flying contraptions.
Suddenly I was hit by a car with a bat symbol on it and was thrown into the side of the mountain.
I made a run for the mansion but a shield kept me from getting inside.
It wasn't a ward, it seemed to be electrical so I tried to use brute force to break my way in.
An older gentle man opened the door and fired a laser out of cannon he held at his waste.
I was missing half of my body and then I blacked out.
MC POV
That was a lot harder then I thought.
I used my will and pressured the half of Voldemort that was left to turn into a USB stick.
I was still watching everything from the mirror dimension safe in the Batcave and the many cameras I had set up.
I had Alfred pick up the flash drive and take it to the secure room.
He uploaded it to the laptop and proceeded to delete all the unnecessary information and all of the emotions attached to the memories.
Once he was done I had him make a copy onto a separate flash drive which he then threw through a mirror in the room.
I caught it coming out of a mirror near me and then closed the connection.
I uploaded the memories to the bat computer which I will sort through later.
Back with Alfred the original USB who I had Alfred wipe clean turned into a white ball of light which I assume is pure soul power since Alfred wiped everything from it.
I willed it to turn into a small pill and then I swallowed it.
I could feel my magic swell and there was slight pressure.
It seems that magic is indeed tied to the soul but now my soul is stronger then my body.
That will be fixed with the upcoming ritual.
On my 11th birthday I sat in the middle of the forest and I pulsed my magic out with a modified notice me not spell.
I drew the circle in dragon blood and on one side of the circle was the locket and the other was the raven.
I had Minney watching over me and as the time struck midnight I opened my core powered the array.
My whole body was burning and my skin seemed to be falling off.
I gritted my teeth and waited for the raven to dissolve and the black wisps to come out of the locket.
My body absorbed all the blood in the circle, the raven evaporated, and the black wisps around the locket turned white and then the surroundings stilled.
I passed out and Minney took me to my underground lair.