I can certainly see why the middle school boys love this one - lots of action, constant plot twists and a likable main character. For me the book was overly long but many of my students told me they could not put it down.

Amazing that after 400 pages I still can't give this one a definitive genre. For sure it is a mystery but is it going to be more sci-fi or adventure???? Recommended for grades 6 & up. Minute amounts of bad language and some violence.

Students who enjoyed SYLO may also like The Maze Runner, Virals and Maximum Ride: The Angel Experiment.