I feel like I am too smooth-brained to adequately put into words my thoughts and feelings of this book. The writing was gorgeous and felt like a true back and forth between Red and Blue - the letters were by far the best part. As their relationship blossoms and the tone within the letters shifts, their words to one another were beautiful and heartbreaking. This story is one that would do well on a reread - there's so much that can be reexamined in the search for clues that were previously missed. 

Unfortunately, being smooth-brained didn't lend itself to understanding the world-building (or lack thereof?) and I still can't decide if that's really a bad thing or not. The obscurity of the world really brings the focus to Red and Blue, allowing the reader to forget the rest.