This book was fantastic! A thrilling survival story with a hearty dose of humor. The main character Mark was such a sarcastic hero and I LOVED IT. The voice and the premise hooked me in right away and kept me thoroughly engaged the whole time. My only real issues were that some of the minor characters didn’t really stand out as much as they could have, and some of the science heavy bits were a little hard to follow and felt info-dumpy at times. But the human aspect–the heart of the story–was totally on the money.