Per misericordiam (смешанная)

Harry walks to his doom in the Forbidden Forest and never draws breath again. An hour later Hermione Granger wakes up in her Hogwarts bed ten months in the past.
It’s the day that Dumbledore died and she's cursed to repeat it.
By her seventh failed attempt to save the Headmaster’s life she begins to wonder what exactly Severus Snape is up to.
And why does she have the distinct impression that Death is irritated with her?
(Not a slash fic)