四日星球(Four-Day Planet)简介：

Fenris isn't a hell planet, but it's nobody's heaven either. With 2,000-hour days and an 8,000-hour year, it subjects its settlers to both melting heat and killing cold. A planet like that tends to breed a special kind of person, someone who can tolerate a life underground, or underwater, where he can earn enough to make it all worthwhile. But when that kind of person discovers he's being cheated of the wealth he's risked his life for, then that kind of planet is ripe for a revolution.