This is the second book in the Old Man's War Series. While not as original as the first, this book explored human consciousness and continued the story of the relations between humans and other races. I enjoyed the story, but was a bit disappointed that the while many of the characters returned, the main character of the story was completely new. Other than that, the science did make me think and while the action wasn't as solid as the original, it still made for a fun read. I will continue the series.