I’ve been reading a lot of clone books lately, this is one of the better ones. It looks at ethical issues of making exact replicas of people--ones that emerge as the same general age as the original--while also just being being a solid colony-ship type of story. The main character is fallible yet likeable, and the histories of failed colonies are so interesting. While this book wraps up somewhat tidily there is a sequel planned and I am looking forward to reading it.