I just finished this novel as part of my 'summer camper' reading collection. I love horror films, haunted house films and films about evil spirits. This novel sort of falls in the 'devil' or 'evil spirits' realm. It features an alien race, the Danites, that is on its way to becoming extinct that actually appear like demons with horns and tails. However all is not as it seems. They are not really evil, just unfortunately dying out as a species. The book starts off with Kirk, Spock and McCoy viewing a magic show. The magician is pretty good, though when he brings out little demonic creatures the Kirk and McCoy become nauseated (it's never really clear if these creatures were Danites and the magician is not seen again, a bit of a plot hole IMO). During this experience a woman starts yelling at the magician and then collapses, and the magician disappears. They learn her name is Gilla she is a member of a religious group known as the Jain, that believe all life is precious and who believe in reincarnation. Kirk gets to know her and falls in love with her. They find out that she is searching for her father, a man who is believed to be a traitor to the Federation because he abandoned Starfleet and went to live in the Klingon Empire for a time. She learns he may be on the world inhabited by the Danites. The world was also home to a Federation colony that went insane some years before. He decides to help her and go the planet which is currently quarantined since the failed colony. When they arrive they encounter a man who didn't leave with the colony, who is frightened by the Danites and lives like a hermit. He leads the landing party to the Danites' village and then disappears. They eventually find the father and learn all is not as it seems. Spock senses a consciousness, something malevolent. They find out centuries earlier the Danites were driven back to their homeworld by a hostile alien species and they build an artificial intelligence to help them. The AI gains consciousness in itself and thinks of itself as almost a god and needs a host to control. Kell, the girl's father is that person. It usually drives it's hosts insane as they are generally unsuitable, but due to Kell's history and the fact he doesn't care if he lives or dies anymore he ends up being a 'suitable' host. But his daughter holds a secret and she wants to save his father. As far as my review, well, I believe this book doesn't have the greatest reputations, or at least is not well regarded if I recall. However, I actually didn't mind it. There is a bit of creepiness to the story which I liked, a sense of something bad in the air. The first impression of the Danites as demonic gives way to a bit of sympathy. They are not evil. They too are victims of the machine. And another thing I liked is at one point in the book Kirk is talking to Gilla and he talks a bit about good and evil. She is surprised and Kirk states that humanity has learned a lot. Science explains a great many things. But there are still things they can't comprehend. That there is such a thing as good and evil, and that it's not superstitious to believe that. And Gilla at one point explains to Kirk her impression of him which was actually a pretty good impression of who Kirk is. She notes he is a complex individual, a kaleidoscope. That on the one hand he is not rigid. He's willing to change based on what he learns, but at the same time he is always true to himself. I have to admit, that's a pretty astute look at who Kirk is, and what probably makes him such a great captain. He has a strong sense of self, a strong value system, but at the same time he is always learning, and always open to new possibilities. The only thing I was a bit put off by is at one point he is so overcome by having fallen in love with her that he seems almost willing to sacrifice everything for her, including his ship and his crew. We know from "Requiem for Methuselah" and "The City on the Edge of Forever" that he can fall in love, and like any human being feels a huge sense of loss when he tragically loses one he loves. But the portrayal in "Devil World" felt a bit off. He wouldn't sacrifice others for his love. Overall, I actually found this to be a pretty decent book, maybe even above average (if I'm grading on a curve with the other Bantam books I found it to be one of the better Bantam's I've read). It kept my interest. And I liked that all is not as it seemed.