Niall and Jessica's love story (one direction)

Niall falls deeply in love with a girl named Jessica. They meet at a concert but what he doesn't know is that it's Louis's long lost sister! (I suck at descriptions so please read this book, it means a lot to me)What happens when something tragic happens? What will Louis do about her boyfriend Niall? What about her friends? Plus a whole lot more! Tell everyone to read please!!! Love, Shawshank!!