Fast paced. Did not let me sleep. 
 The series' ending broke my heart. I remember the night when I just finished reading the book, I could not sleep for more than a week because I was really disturbed with the ending. 
 I remember being irritable. I do not know if the reaction is unanimous with everyone who has read the ending, but with me, it robbed me with my peace of mind. 
 And thinking about it now, I think I might have just made myself lose more sleep in the coming days. 
 I think, I just am not ready with that kind of ending. Nevertheless, I give this five stars for stirring emotions I never thought I had.