The Lost Piece

Me and my sister are best friends . We do everything together . Well what could you say , we are twins after all . She's always there for me no fail , but things take a turn for the worst when we start high school . Typical teenage stuff right ? Well one day something terrible happened . I didn't understand the altitude of my words , I do regret it really . Who knew this would've happened ? No amount of sorrys could reverse this . I can't live life without her and I'd do anything to take her place . Since this has happened my world crashed down . It was like something was lost . But what ? Will I ever find it ? Will she ever return ?