Del Rey Books, Paperback, 9780345493187, 255pp.
Publication Date: September 26, 2006
Jim Marlow and his strange-looking Martian friend Willis were allowed to travel only so far. But one day Willis unwittingly tuned into a treacherous plot that threatened all the colonists on Mars, and it set Jim off on a terrfying adventure that could save--or destroy--them all
From the Paperback edition.