Henry Beam Piper 
Four-Day Planet 

Fenris isn’t a hell planet, but it’s nobody’s bargain. With 2, 000-hour days and an 8, 000-hour year, it alternates blazing heat with killing cold. A planet like that tends to breed a special kind of person: tough enough to stay alive and smart enough to make the best of it. When that kind of person discovers he’s being cheated of wealth he’s risked his life for, that kind of planet is ripe for revolution.

About the author

Henry Beam Piper was an American science fiction writer. He wrote many short stories and several novels. He is best known for his extensive Terro-Human Future History series of stories and a shorter series of ‘Paratime’ alternate history tales.

He wrote under the name H. Beam Piper. Another source gives his name as ‘Horace Beam Piper’ and a different date of death.[1] His gravestone says ‘Henry Beam Piper’. Piper himself may have been the source of part of the confusion; he told people the H stood for Horace, encouraging the assumption that he used the initial because he disliked his name. On a copy of Little Fuzzy given to Charles O. Piper, Beam’s cousin and executor, he wrote ‘To Charles from Henry.’