Sirius walked down the hallway to get to his next class, DADA. Around the corner appeared the face of Severus Snape, the student who called Lily a mudblood. The student the Marauders did not like, in the least. He saw Sirius and grinned.
"Hey, Sirius!" He hollered
Sirius kept walking.
"Hey!" Severus shouted, "Belief got you down?!"
"Shut up, Snivellus." Sirius warned
"I don't think so," Severus cackled, "Another girl of yours die?"
Sirius whipped around, grabbing Severus and pinning him to the wall.
"You do not speak to me like that, Snivellus." Sirius growled, "Understand?"
Severus laughed in his face.
"Hey, I know." Sirius spat in his face, "Imagine Lily lying there, dead from the Killing Curse, calling out that you weren't there to save her. Imagine that you had just gotten her to yourself, that you were right there, watching as she fell, unable to do anything but watch. Listening to her body hit the ground, imagining her soul leaving her beautiful body, leaving you there hopeless and desperate. Imagine running to her still figure, shaking her, your heart telling you there's no way for her to be dead but your mind telling you that it's the truth. Imagine the only professors there dragging you away, kicking and screaming. Imagine waiting for them to find her murderer, the same person who killed her parents. Imagine every Christmas being told they still haven't found them. Going to her grave outside the Quidditch pitch every Christmas morning, not even bothering to open the presents you know are there, and dreaming of her every night, dancing with you then leaving you to grieve. Imagine that, Snivellus, you greasy toerag."
Severus paled and ran off as soon as Sirius let him go. Sirius fell to the ground tears streaming down his face. He lay there, on the ground. Lily came running towards him worry written on her face. She saw him there and checked him over for injuries, then cried out in joy as soon as she saw that he was fine.
She hugged him and he sat there in her arms, sobbing. Every few seconds a scream would escape his lips but no one came to bother them. Everyone knew that she would find him and take care of him. Every scream that he let loose echoed in the hall, bouncing off the ceilings and the walls.