Time siege

Summary/Review: "Earth is a toxic, sparsely inhabited wasteland--the perfect hiding place for a fugitive ex-chronman to hide from the authorities. James has allies, scientists he rescued from previous centuries ... James also has enemies. They include the full military might of [a] benighted solar system ruled by corporate greed and a desperate fear of what James will do next. At the forefront of their efforts to stop him is Kuo, the ruthless security head, who wants James's head on a pike and will stop at nothing to obtain it--Amazon.com.