I really liked the originality of the original and if you don't want to spend time on a trilogy it's a good duology. Does what a good sequel should, changes the kind of story while keeping the spirit and characters from the first. The first dealt with political intrigue and romance in a single city, here Seraphina travels the world to find her fellow half-dragons. However, she is not the only one with special powers and someone from her past is out for revenge. Unresolved questions from are explored with greater focus on her special mind powers and dragons play a bigger role. 
 While social justice and prejudices are a strong theme throughout this is one of the best stories that handle diversity in it's characters. Characters are not defined by their diversity and it doesn't waste time uselessly exploring it. 
 Doesn't have the typical happy ending but it is satisfying. While not answering all questions it does feels natural and not forced. Plot had me guessing till the end. 
 If you liked the first book read this.