Red Planet
Robert A. Heinlein
<p>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!  </p>
<p><em>From the Paperback edition.</em></p>