if someone told you that after only a year of finally being able to see your brother Sirius your crazy ass cousin would kill him during the The Battle of the Department of Mysteries. What would you do? believe it or not?
Unfortunately, you weren't given a choice to believe it because here you were. fighting alongside him fighting off death eaters left and right. It seemed like the order was winning, everything was going well. no one has died....yet.
"nice one James" you heard your brother compliment Harry as they fought, you were behind them fighting, making sure no one could sneak up on them. Sirius had managed to disarm Lucius Malfoy when Bellitrix came out from the shadows, waving her wand towards Sirius and yelling
"AVADA KEDAVRA!"
Harry, you, Sirius, Bellatrix, and everyone in their small section of the fight went silent. sirius turn to look at you and Harry, giving you both a reassuring smile before his body was sucked into the veil, Remus on the other side of the department rushes over to you and Harry as you fall to your knees and let out a scream. You had officially lost everything you cared for; first, it was Regulus, and now Sirius. remus kneels down and holds you gently while, out of pure anger and grief, Harry goes after Bellatrix---who now taunting you both repeating the lines "I killed Sirius Black" over and over again