Sirius pov
I suddenly wake up and look around where I am it was totally different than my bedroom.
"So it wasn't a dream Huh" I said coming to terms with the fact that I left my own world.
I look at my body and say "I am Sirius black Lord of the ancient and noble house of black"
After I say that I feel something click inside me and know there is a powerful energy inside me.
"Is this magic it's amazing it's like I don't even know how to describe it", I say in wonder.
"With this and my future knowledge it would be embarrassing if I wasn't the strongest wizard"
' I know all this stuff about magic I believe I have Sirius's magical knowledge this will make my plans way easier first things first'
"Kreacher" I call.
"Yes master blood traitor", the house elf spits out.
"Avada kedavra" I say trying my best to use my first spell.
Surprisingly it works and I see a dead kreacher.
"Few with that I know I at least won't die the same way as the original".
" I should try to use my wish to see if it works and to bolster my strength".
So I sit down put my hand on my head and speak the words " potential unleash"
I feel an unimaginable pain through my body and it continues on for five minutes before coming to an abrupt stop.
I can tell there is an immense strength in my body compared to before and I can think more clearly, ideas are coming to me more easily and I believe that my magic is almost twice as strong as before.
" This strength is amazing but uncontrolled I need to relearn everything I know about magic then test my physical and mental strength but before that I need a new house elf".
"Any free house elves looking for a master come to me", I call out.
Three house elves appear 2 male 1 female.
" State your names" I command needing them to respect me on our first encounter.
"Blinky" the female one says.
"Oddbod" the first male one says. "Fleety" the last male one says.
"I want you all to be my house elves do you accept", I said looking at each of them carefully.
"YES", they all shout completely synchronized.
"Then how would I go about bonding with you three".
Fleety responds "Put your hand on my head and say I Sirius black take Fleety as my house elf"
I quickly did the process for all three elves and proceeded to give them all commands.
"Oddbod make me lunch Blinky and Fleety clean up this place".
"Yes master black" they all say excitedly happy to be given work before quickly disappearing.
"I remember reading somewhere that the Black's Library was massive second only to Hogwarts in Britain I will go there now to help me with my studies to catch up" I say.
Walking over to a door that has a sign reading Library over it I open the door and...