Harry woke up and decided to go meet his siblings. So he wrote a letter to his siblings.
Dear Snape twins/Jason Snape,
I want to meet you today at 2:00 in Diagon Alley. My name is Harry Potter and I am your younger brother.
From Harry James Potter.
He sent the letter (I know the letter is crappy but you have to deal with it) to his brothers and made his way Diagon Alley (by apparating of course) ,cause it was 1:50 and he was bored where he waited for his brothers to come.
They eventually came and here is what they look like.
⬆️⬆️⬆️⬆️⬆️⬆️⬆️⬆️⬆️⬆️⬆️⬆️
Alexander and Sirius but with brown eyes.
⬆️⬆️⬆️⬆️⬆️⬆️⬆️⬆️⬆️⬆️⬆️⬆️
Jason
That is what they look like.
Harry makes his way towards them and greets them. They talk and Harry finds out that they are all animagi and the twins were identical foxes and Jason was a dragon.
Their animagi's names and what they look like as a animagus:
Pretend they are black and are adult foxes.
Hunter:Sirius
Ryder:Alex
Lucas:Jason
So after they finish talking they decide to all move to Grimmauld Place so they do and Harry ends up falling asleep.