Give up the Ghost was better than I thought it would be. I didn't love it, but I did enjoy the story. What I liked about it most was probably the real life issue of the grief that Tim is dealing with that really made this story worth reading.
I liked the plot of this one, about the ghosts being gossip mongers, giving Cass what she needs to survive high school. But what held back the story was that Cass didn't really have any real living friends. Just ghosts. So, really, Cass didn't have to worry too much about hiding what she is and what she can do. I think I would have liked to see it to complicate her social life a little more, more than just giving her the ammunition she needs to deal with the popular crowd that picks on her.