Since You've Been Gone was an excellent read! 
 We start off with Emily, a shy girl who hides in the shadow of her best friend, Sloane. Sloane has disappear and we don't know where she went until later in the book. Sloane has left Emily a list of items to do. Emily, with help from Frank, finished the list. 
 I like Frank and Emily together and would be interested if Morgan Matson wrote a sequel to SYBG. Emily's and Frank's friendship was just so beautiful that I wanted to cry when I finished the book. I recommended this book to 8th-adult.