When Sarah, the meekly obedient daughter of a domineering billionaire, is sent into space and forced to join the wild, harsh life of the desert-dwellers on the planet Rover, she's confronted with a choice. Keep her head down, as her father expects, and gather useful information about the strange planetary Societies that have recently made contact with Earth. Or, welcome the power that comes with her scaly-skinned Assimilation and reinvent her life, free at last from her oppressive family. As she grows to care for those around her on this strange new planet, Sarah learns of a threat to them all, a shadowy group called the Spear. Her new abilities offer the chance to rescue not only herself, but many others. The question is: how far is she willing to go to protect this way of life?