In a relatively energy-poor future, Earth’s engineers have built an orbital Station that captures sunlight and transforms it into petawatts of microwave power, which is then beamed down to the planet and transformed into electrical energy. To lower costs, the Station has been designed to be autonomous, maintained and repaired by an army of robots, and needing no assistance from humans. When the Station slides off-beam, its enormous power makes it a potential threat, a potential that is quickly actualized. Chief operating engineer Graciella Ch’Ou, Chinese-American daughter of the man who built the Station, Major-General Ethain Rigsby, is the only person with the knowledge and skills to fix the problem. But to do so, she must battle not only her own father, but as well a US Army space combat mission, tasked to destroy the Station, a group of mercenaries determined to capture the facility for their own purposes, and the Station itself, which has a built-in means of defense--the horde or robots, which sustain it. Graciella’s chief enemy, however, is space itself, a hostile and unforgiving environment where the slightest mistake spells death. Racing against time and implacable enemies, Graciella must shut down the Station before it triggers a die ira--a day of wrath from heaven--an apocalypse which will destroy the Earth. Provided by publisher.