Oh Gemina.. This one was even more intense than Illuminae! I freaking loved Hanna, she was badass and snarky and just perfect. Also adored Ella! The storyline of this book was insane, all the twists and turns that I didn't see coming. The alternate reality part of this book was really something, and I loved it! I think I would have to say I liked this one even better than Illuminae! We got to see what was happening while Hypatia was in their space battle with Baytech. Ugh Baytech is so evil! They need to die. I loved that there were characters from the first book, and everything kind of connected. AND WTF JACKSON HOW COULD YOU TURN OUT TO BE SUCH A DICK? Anyways, I loved this so much, the book was just as unique as Illuminae, and I can't wait for the next one to come out!!! 
 5/5 stars!!!