Disclaimer: I do not own Harry Potter or anything related to it. I do own my imagination, however.
(Now, on to the story!)
It all happened three weeks before. For all she could remember, it was total chaos. Hogwarts falling to pieces, wild screams of horror and pain, bolts flying through the air from every direction, utter destruction everywhere. Death Eaters, Aurors, teachers and students alike lay down on the ground, most of them dead or unconscious. She almost died, but in the end managed to get out alive. Looking down towards the school grounds from the top of the Gryffindor tower as a light breeze engulfed her, she remembered everything, as clearly as if it happened just moments before.