Disclaimer: Harry Potter belongs to J.K. Rowling. I own nothing and am not attempting to make a profit.
Laughter
Sirius Black ran as fast as he could dodging through the crowded muggle street. Cars honked as he passed in front of them, pedestrians shouted as he jostled them, but he couldn't afford to loose track of the small man he was chasing. If only he killed Peter, then he could make up for as good as killing James. And he hated Peter, Peter who had turned in James to Voldemort! It was his fault that James and Lily were dead, and that their young son, Harry, was an orphan! He betrayed their friend, without a second thought, wen James would have died rather than betray him!
They turned on to an emptier side street and Sirius pulled out his wand. He was about to curse his former friend, but Peter – clumsy little Peter – was faster than him. A wave of his wand and all the muggles on the street around them fell to the ground, dead. His master must have taught him some new tricks, Sirius thought with a sneer.
"You! You killed them!" Peter exclaimed, before transforming into a rat and scurrying away.
Sirius stood there frozen for an instant, before he dove after the little rat, but it was late, too late. Peter was gone. He had failed again! First he as good as killed James, and then he let their real murderer get away!
He heard people shouting, but the present felt almost like a distant memory. Sirius glanced around him numbly, there were the muggles, dead on the street, all killed by Peter, but no one would believe him, the man suspected of tipping off Voldemort to James and Lily Potter's location. It wasn't him, it wasn't, but he killed them all the same and let their murderer get away. And then it was funny, hilarious even. He doubled over with wild, maniacal laughter.
The aurors came, took away his wand and tied him up, but he never stopped laughing.
