This is a classic about an Antarctic research camp that discovers and thaws the ancient, frozen body of a crash-landed alien. The creature revives with terrifying results, shape-shifting to assume the exact form of animal and man, alike. Paranoia ensues as a band of frightened men work to discern friend from foe, and destroy the menace before it challenges all of humanity The story, hailed as one of the finest science fiction novellas ever written...