Forgive Me, Father [r.lupin x s.snape]

The war was well underway when he heard the prophecy.
It was hearing it, then relaying it, that made him switch sides.
He turned to the light as a spy. He reoriented himself as a man of faith, believing this double life would be penance enough for his sin.
He was wrong.

He sat there for what felt like forever and no time at all before a wail brought him out of his thoughts.
A cry that was trapped in his skull.
"Severus you have to take him..."
"How can I when I'm the one that caused his cries?"
"Because She would want you to."