Description of Double Cross by Sigmund Brouwer
Life in an experimental community on Mars is filled with adventure, new discoveries, and questions. As 14-year-old virtual-reality specialist Tyce Sanders searches for truth, he battles forces of evil-all while struggling to believe in God. In book two, Tyce has to figure out what's really behind strange black boxes that show up on Mars after a quake. Then he has to stop a deadly comet from destroying the planet and all those living on it. Can Tyce learn to pilot a test space vehicle in enough time to stop the comet?