I do not own Harry Potter or associated characters, they belong to JK
Prologue
It was never meant to be that easy, he thought it would take months, maybe even years for her to break before his Aunt, but it had been mere weeks, but it wasn't hard to see how defeated she was.
Yes the Dark Lord was gone, but the Ministry were still trying to gain control of the Wizarding world, they couldn't spare too many people to search for her and with her famous best friend lying in a coma since defeating the Dark Lord, the Weasel had been hit with a spell which cause him to think he was 10 years old, and of course her parents were muggles who didn't even know she existed. So Hermione Granger was pretty much screwed.
He and his parents had left before The Dark Lord had been defeated, leaving the war behind to try and start again regretting all those decisions that had been made during the last few years, and there were plenty of people who gave evidence to support this, so in view of changing sides it was agreed for his father to spend 5 years in Azkaban.
From what he found out, his Aunt had hidden away after being attacked by Molly Weasley, a sight he would of loved to see, and once it was hectic she ran, leaving behind the Dark Lord however claiming she'd take the power next and this is where she took Hermione Granger.
His mother told him that he couldn't help, that his Aunt was now that far gone she'd kill him without a blink of an eye, but after catching sight of Granger he couldn't turn his back on her, he hadn't wanted to do a great deal of things during the war, he had been a coward and let the fear of the Dark Lord rule him, but he didn't want to be that person anymore.
There was also the fact if he did return Granger; maybe the Wizarding community would slowly start accepting him and his mother, instead of out casting them as has been done since the war 6 weeks ago.
So now he just needed to make a plan to save the precious Hermione Granger, and of course not get himself killed and once he got her out, well then it would be all over, his job done... Wouldn't it?