This book was so good. 
 So good, in fact, that I might just go read it again. This series is a high-aspect science-fiction saga full of zombies, hackers, explosions, universes, planetary dysfunctions and more. It's such a great series and I love it with all my heart. Gives me a lot of inspiration to write my books. 
 The writing of these books is STUNNING. 
 "A split second. An eternity. Into the breach. Across the brink. A micron wide. Deep as forever. Of all our infinite possibilities, these are but two." 
 And my God, the characters are hilarious and intense and so well-developed. I loved the relationship between Niklas and Ella, as well as Jackson and Hanna. All of the characters were so good and we got to see Kady and Ezra and our favourite psychotic murderous AI-killerbot, again, AIDAN! 
 AND PLUS THAT ENDING?!?!?!?!?! I NEED MORE. 659 PAGES IS NOT ENOUGH. GIVE ME MORE KTHX. 
 Ugh I'm going to go wallow in a corner and possibly re-read Gemina or Nevernight because dang Kristoff's writing style holy shizz. 
 *withdrawal*