I'm not normally a novella person. I often find them irrelevant and rather than adding anything to the overall plot - they detract from why I like a series. But that's so not the case with Shadows. Shadows is the pre-story of how Bethany and Dawson meet. It's all information that anyone who has read the Lux series knows but getting to read it and know first hand how everything went down - it has changed how I view this entire series. 
 Bethany and Dawson have a fantastic story. They meet and really get to know each other. There's no instalove here despite their intense connection straight off the bat. And I liked them more as a couple because of it. Bethany is sweet and grounded - she wants to do what is right by herself and her family rather than just doing whatever she wants. And then there's Dawson. Why is the fandom so into Daemon when there's Dawson to consider? He's definitely my favourite of the brothers now. Compared to Daemon's dark and surly demeanour, Dawson is practically sunny in comparison. 
 If you're a fan of this series and haven't read this novella - I highly recommend it. It adds a lot more than just the relationship between Bethany and Dawson. We get to see the DoD (Department of Defence), Bethany's Uncle Will as well has just how the Thompson Triplets operate from a non-biased outsider's view. And plus - at 179 pages this is more than a typical novella. It's detailed and offers quite detailed back story. I have to say that reading this had made me particularly eager for Origin (Lux #4) which is released later this month.