Hermione Granger: An Unexpected Turn

In the final battle, Harry Potter is proclaimed dead and Voldemort comes to rise, taking over the wizarding world, killing muggle-borns and wizards against him spreading his wrath in every inch of the wizarding world. How did life become so miserable?
---
"I feel like, maybe", Ron wasn't sure how to put it, "Maybe Harry's-"
"Ron stop.", Hermione commanded, "That-that can't happen. Harry's dead, Ron. Why can't you just understand that? We saw him dead!"
"It's true we saw him like that Hermione. I mean, like he was dead. But we never had a funeral, never saw him being buried. Maybe-maybe he really is alive..."
---
Will Hermione and Ron be able to save Harry, or will it all end horribly?