Through the glass

Harry's styles dad has left his family about two years ago. Ever since his 13 year old sister Kaylin spoken a word. The two are very close. There like best friends. They bth have been singing sine they were kids. While Harry goes on tour Kaylin gets bullied. What will happen when Harry brings him his band mates for a vacation. Will Maggie learn to trust again? Will her once beautiful voice be heard again?