Title: Blame

If Severus could change one thing about his past, he knew exactly what it would be. He would do anything, absolutely anything to redo this moment and erase the memory completely. It would remove the guilt that constantly churned in his gut.

If he had never called her a Mudblood that day, none of them would be where they were right now. Severus wouldn't have taken the Dark Mark if she had still been his bubbly, charming and witty best friend. He wouldn't have relayed the prophecy to the Dark Lord. Lily would have been safer, no longer a target.

It was entirely his fault that Lily had died.