Remus was really proud of Sirius, this was going much better then he expected. Neither Gryffindor nor Slytherin had pulled out their wands which was a big plus in Remus' mind. He could understand Severus' disbelieve of course, the dark-haired boy had been on the receiving end of James and Sirius' pranks for years now.
"I'll make sure this never will happen again. " He could not promise that his friends would never play tricks on the Slytherin ever again but he could promise that the wolf would never ever be a part of it. He would make sure his friends would understand that if they would even think of a prank which would feature the wolf he would never talk with them again, he would also leave Hogwarts because he would not be able to live with the idea of hurting or killing anyone.
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Severus had looked at Sirius when he spoke, he could guess that all this was Remus' doing but for now it would have to do. He was going to be the mature one. He was never going to forget though, he couldn't do that, he had almost been eaten by a werewolf, by Lupin.
"Apology accepted." He said, his tone as even as possible but the arrogance and venom were still to be heard in his voice and seen in his eyes. He would never forgive the Gryffindors, but he was going to show them that he was ten times the man they were and much more an adult then them by accepting the apology, not forgiving and certainly never forgetting but accepting.