Hermione Granger was found in Diagon Alley years after the war ended. Harry Potter had died, Ronald Weasley went into hiding, and Hermione Granger had been thought dead.
The day she was found she was taken straight to the Dark Lord himself as she was one of the most wanted witches in all of England.
But it turns out, she wasn't who she thought she was.
I do not own any if the Harry Potter Wizarding World, characters, or places from it, they all belong to the wonderful J.K. Rowling