Continuing what she began in [b:My Enemy, My Ally|176543|My Enemy, My Ally (Star Trek, #18)(Rihannsu Book 1)|Diane Duane|http://photo.goodreads.com/books/1172442847s/176543.jpg|74442], [a:Diane Duane|11761|Diane Duane|http://www.goodreads.com/images/nophoto/nophoto-F-50x66.jpg] does an incredible job fleshing out the backstory of the Rihannsu -- more commonly known in the Federation as the Romulans. The framing story surrounding the historical data isn't as impressive, and is more of your average enjoyable-but-not-mindblowing Star Trek adventure, it's really the chapters of Duane's exploration of Romulan history and culture that makes the book stand out.