Really good. It was delightful to read about quiet girl Emily's adventures to solve the mystery of her best friend's disappearance and also complete the list Sloane left for her. Frank Porter is probably one of the best boys in all of YA. He's darling. I love watching Emily and Frank get closer, and I think it's awesome that they really are good friends long before anything romantic happens between them. (But that kiss, holy wow 10/10 would swoon again!) I think the evolution of Emily and Sloane's friendship is very natural so I'm totally okay how the book left the two of them. The only thing I wish had more resolution is poor what's-his-face, Emily's ex. Poor guy deserves his own HEA. Feel free to jump on that any time, Morgan!