Light-hearted sci-fi. Very little graphic violence. Just enough to think about but not enough to depress you. Good triumphs over evil, the bad guys get their comeuppance and everyone lives happily ever after. Just my speed.Audible edition: Wil Wheaton is rapidly becoming one of my favorite narrators. He does an excellent job and doesn't leave you thinking that you have just heard a book narrated by Wesley Crusher.