3.5 stars. 
 Ok.... where to start? 
 Dividing Eden is told in two alternating POV - twins Carys and Andreus. 
 Carys has spent her whole life protecting Andreus' dark secret. Andreus would rather be working with the engineers improving the windmills that power their city, than be a prince. 
 All this changes when their Father (the King) and older brother (Heir to the Throne) are murdered. 
 Since both Carys and Andreus have an equal claim to the Throne, the Advising Council devise a series of tests (Trial of Succession) to determine who should rule. 
 It took me a while to get into this book. The first 40% was mainly setting up the story. We slowly get to know the characters - but to start with I didn't really like either of them all that much. As we get to know both Carys and Andreus, they are well fleshed out, three dimensional characters. Though in one instance I felt that Carys acted out of character. 
 Despite the large portion of the book setting up the story, I feel like some of the world building was a little rushed. 
 The kingdom is plagued by some unknown (to us, anyway) enemy called Xhelozi. Its unclear who (or what) they are until close to the end of the book - and even then its not all that clear. I feel this is one occasion where I would have welcomed a small 'info dump'. Maybe the author is saving a more in-depth description for the next book? 
 Around halfway into the story, things started to get interesting. This is where the Trial of Succession starts, and the deeper plot is revealed. From this point on I was well and truly hooked. 
 This book is definitely worth the read. I'm hanging for the next book now!