There is a fine line between transformation and ruin.... Twenty-four-year-old Reeve Calder has spent his life on a high-tech space station, watching as terraforming gradually fails on his home planet of Lithia—a failure that has doomed the colonists stranded there to short, brutish lives. Reeve's dream has always been to rebuild Lithia. But when a mysterious explosion destroys the station, forcing Reeve to crash-land on Lithia's blood-hued soil, he soon learns that the reality of saving a dying planet is quite different from what he imagined. For Gabriel Bonhert, former captain of the space station, has set in motion a world cataclysm, using a fatal probe that will travel down the fiery pathway of a deep mantle plume. Now, to save the homeland he has never known, Reeve is caught in a race against time to reach Bonhert's base in the Rift Valley, a remote volcanic gateway to the hidden heart of Lithia. His staunchest ally may be a feral girl who alone seems enthralled by what Lithia is becoming, and whose enigmatic past holds the key to startling possibilities. As the old Lithia struggles to be reborn in a tide of toxic red flora creeping across the oxygen-starved planet, Reeve forges onward, coming into conflict with savage enclaves of colonists, a doomsday genemorphing cult, and a mysterious alien race with its own intentions for the planet—intentions that may include humanity's slavery or their terrible transformation....