Funny, romantic, heart stopping.... Onyx was ridiculously entertaining. 
 I wasn't super impressed with Obsidian but Jennifer L. Armentrout really comes into her own with Onyx. Since the set-up for the series was completed in Obsidian, Onyx really opens the world up and new complications arise which show a promising future for the Lux series. 
 In Onyx I was able to really connect with the characters which was an area I felt was a little superficial in Obsidian. One aspect I really adored was the development of the romantic relationship between Daemon and Katy. Thank you Jennifer L. Armentrout for highlighting that sexual chemistry doesn't equal love. 
 I'm really looking forward to Opal.