This book is interesting, but stupidity of all the people (colonists and ghosts) will drive you crazy. You will figure out what is going on on the planet pretty quickly and wonder why everyone on the planet is a complete idiot. (view spoiler)[ Elizabeth spends all this time "researching" symbiotic relationships when it's something she should have learned in high school biology. 20 minutes on wikipedia should have been all the "research" she needed. And everyone thinks she a genius for this discovery. (hide spoiler)] Aside from that it's an interesting world. The romance is somewhat lacking. While I understand the physical attraction, they seem to fall in love without much interaction (view spoiler)[ He seems to fall in love with her because she so "intelligent" while she falls in love with him even though he created the horrible Protocol in the first place (and you have to be reasonably heartless to come up with such a protocol. (hide spoiler)]