After finishing Illuminae, I immediately wanted to read this book. I ended up enjoying it even more!

The new characters introduced in this book were great. I particularly enjoyed the banter between Hanna and Niklas. Also, Niklas' cousin Ella was a great addition to the story.

Once again, the formatting really added to this book. I thought Hanna's sketches were really cool, and I thought the one about her and Niklas was pretty funny.

Overall, this book was all over the place (in a good way). There was just so much action, and I never knew what to expect.