Shadows of Medusa
Enke, Brian
http://new.marsstuff.com/author/benke
PublishAmerica(ISBN: 1413735827). (2004)
The first human exploration mission to the planet Mars is shrouded in secrecy. Even David Debacco, the Director of Mission Support, doesn't know the identity of the mission sponsors or their true agenda. As David struggles to keep the Mars explorers alive, an expanding web of murder and deceit threatens the mission and the woman he loves.
Traveling to Mars, focusing on the exploration of a new world, Anna Schweitzer is barely aware of the Earthly plots surrounding her. Against impossible odds, she looks to Mars for hope. Will she live long enough to reach its untamed surface? Or will she succumb to elements more terrifying than any she left behind?