Since You've Been Gone"Since You've Been Gone" is a young adult novel written by Morgan Matson, published in 2014. The book follows the story of Emily, a shy and introverted teenager who is forced to come out of her shell when her best friend, Sloane, disappears without a trace. The book is set during the summer before Emily's senior year in high school. With the help of a list left by Sloane, Emily embarks on a series of unexpected adventures, meeting new friends and