The smartest witch of her age takes steps to ensure the survival of herself, her husband, and her son when they go under the Fidelius Charm.
It's Harry's Fourth Year and another Halloween but Harry is not gonna take things lying down as he did earlier. It's time for him to take a stand and he has already begun to use logic which Hermione says most wizards lack.
This a story of what would have happened if Harry had thought differently during the fight in the graveyard.