Charles Sheffield

Nimrod Hunt is a science fiction novel by Charles Sheffield. The story takes place hundreds of years in the future, with humanity having extensively colonized surrounding space, including beyond the solar system. Humans have encountered three extraterrestrial races, which although all bizarrely different in physiology …

Proteus in the Underworld is a science fiction novel by Charles Sheffield. The book is set in the same universe as his previous works Proteus Unbound and Sight of Proteus, although it stands on its own and can be enjoyed regardless of familiarity with Sheffield's other novels.