Read After Mine. Absolutely read this book after you read MINE by Brett Battles. This one tells the story of how the Reclaimer came to Earth and how it wound up at the facility in Colorado. Short (roughly 1/3 the length of MINE) and told in a couple of different ways, it sheds light on the initial attempts to understand the Reclaimer. Very enjoyable read that adds depth to MINE.
This review of Mine: The Arrival by Brett Battles was originally published on May 1, 2018.