This series just keeps getting better and better! Opal continues where Onyx left off and only gets more intense. I am so glad that in Opal we have a lot more focus on the aliens/bad guys and getting more information about all of that. There is still plenty of romance, but not overly so. Which is fine by me since there is a lot of other things going on besides Daemon and Katy's love life. Although that IS still there and it's still HOT, HOT, HOT.
I loved everything about Opal and really there isn't much more I can say about it without giving spoilers on this one or previous books. The only other thing I can really say is...HOLY COW that ending! The ending of this book is crazy and has desperately made me want to read the next one right away. It is a bit of a cliffhanger at the end so have the next book handy! Sadly for me I have other books I really have to read before I can read the next one. :(
Overall Opal is a fantastic addition to The Lux Series and I recommend it for fans of the first two books in the series. If you like paranormal romance novels then you really, really need to try this series!!