35.12: The Kill Order, by James Dashner. (2012 hardcover)

This is a prequel to The Maze Runner series, so I'd really recommend that you start there before reading this one. I read books one and two in 2011 and book three earlier this year, and you can check out my reviews at this link and this link. Overall, this was a good addition to the series, and I look forward to what I assume will be a second prequel release--forming an eventual trilogy (pre-trilogy?) of its own--if things go according to the seemingly usual release schedule of TeenLit.