Ginny has always been known as Molly and Arthur Weasleys youngest child but in Harry's 7th year she finds out she's adopted In this book Sirius did not die Arthur did Oh and Ginny has a secret boyfriend named Blaise Zabini but he's a ravenclaw In this book ginny is Ron's twin and it takes place when they are out hunting for horcruxes (hermione didn't go with them)