As far as sequels go, Invaded did not disappoint in the slightest. I loved the world and characters that Landers created with Alienated and she took it one step further with Invaded, because we got to see what the alien world was really like. The pacing was excellent, everything flowed smoothly. The stakes are a bit higher this time around because both Cara and Aelyx are trying their best to repair the damage done in the first book. It really bummed me out that they were separated from each other so long. Aelyx needed to stay on Earth and "put on a good show" to get the public to think positively towards the L'eihrs and Cara is actually on L'eihr, checking out what life will be like for humans who choose to live there and to help fight for their rights. I definitely felt the heartache between this captivating couple. 
 I really don't know who has it worse. Cara gets put through the ringer while on L'eihr. No one really wants her there, except a select few, and like all pioneers, she has to deal with quite a lot of obstacles proving that she, and humans alike, is just as good as any one of them. Aelyx, on the other hand, had to deal with a lot of threats towards his life on many accounts, all while trying to put on a happy face and appeal to the masses. Trust me, things are a lot deeper than I'm letting on. 
 I think I enjoyed reading more about when Cara was on L'eihr. It was interesting seeing this world and its inhabitants. I liked learning their rituals and their society. They definitely put Cara through a lot, physically, emotionally, and mentally. Not only does she have to deal with their diet and exercise, she also has to deal with someone who is obviously out to get her. I respected Cara so much in this book. She seemed so naive and innocent in the first book, but with a tough edge. In this book, her maturity is so evident and I appreciated the fact that when it came to matters between the two worlds, she thought of more than just herself. 
 Overall, I was pleasantly pleased with Invaded. There were so many heart-aching moments coupled with action-packed, thrilling scenes, the pages just flew by. Not only that, the story was just a fun read in general. I loved Aelyx and Cara and SO needed more of them together. The distance was torture! It was so cute watching their relationship progress, especially since Aelyx is still learning human customs. Other characters get a bit of romance as well and it was fun watching that all play out. So yes, if you enjoyed the first book, you'll get a kick out of the second book. And if you haven't started this series yet, you'll definitely want to. A very great sci-fi romance all around.