OMG
I could actually feel my heart tearing itself into pieces on chapter 2

Dog son WTF

Nice reason for Sirius breaking out, just like before in Book 3 that he broke out because he knew that Peter Pettigrew was at hogwarts with Harry and that made him risk his life and soul to get past the dementors to Harry. Nice!

SIRIUS ORION BLACK! HOW DARE YOU BE SO MEAN TO MY REMUS!

IT'S NOT HIS FAULT HE DIDN'T BELIEVE YOU WERE INNOCENT!

BLAME WORMTAIL, THE KING OF TRAITORS!

ACTUALLY, IT'S PARTLY YOUR FAULT, TOO!

IF YOU HAD TOLD DUMBLEDORE ABOUT THE SWITCH IMMEDIATELY AFTER JAMES AND LILY WERE KILLED, INSTEAD OF ACTING LIKE A FOOL AND CHASING AFTER THAT RAT BASTARD, WORMTAIL, YOU WOULDN'T HAVE GONE TO AZKABAN IN THE FIRST PLACE AND POOR HARRY WOULDN'T HAVE BEEN ABUSED FOR THE LAST FIVE BLOODY YEARS!

YOU APOLOGIZE TO POOR REMUS THIS INSTANT, OR I WILL TAKE YOU OVER MY KNEE AND INTRODUCE YOUR BACKSIDE TO MY MOM'S WOODEN SPOON!

P.S. I MAY ONLY BE 18 YEARS OLD, SIRIUS ORION BLACK,

BUT I MEAN IT! IF YOU DON'T APOLOGIZE TO MY REMUS RIGHT THIS SECOND, YOUR BACKSIDE WILL BE MEETING MY MOM'S WOODEN SPOON!

AND WHEN I'M FINISHED WITH THE SPOON, YOU WON'T BE SITTING COMFORTABLY FOR A YEAR!

Sirius' full name is "Sirius Orion Black".

Remus' full name is "Remus John Lupin".

Harry's full name is "Harry James Potter".

And everyone already knows that Dumbledore's full name is

"Albus Percival Wulfric Brian Dumbledore".

The word for someone who is really tired is "exhaustion".

And it is spelled

"E-X-H-A-U-S-T-I-O-N"

Well you definitely left this story at a strange point. I hope you finish it someday.

Thank God. I didn't want Sirius mad at Remus.

Thank God!

This is so heartbreaking.

Thank God Sirius came.

This was great.

I really hate the Dursleys.

The truth! Sirius, jumping to those conclusions hurts people again.

Good chapter.