Abstract: In Death Kit, through the presentation of Diddy's life journey, Susan Sontag gives a picture of the highly entropic life led by American people in 1960s. As a representative of modern people, the protagonist Diddy is firstly terrified by his highly entropic environment and steps back into his inner space of self-consciousness. Then due to highly entropic information, the sense of uncertainty in his isolated state of mind is greatly increased. Having been aware of his highly entropic mentality, Diddy attempts to reacquire his sense of certainty by means of changing his way of perception and pattern of behavior. His efforts, presented as the events of murder and suicide, rather than bring back faith to him, cause the exacerbation of his self-consciousness and finally lead him to silence, which means the death of his spirit, the exhaustion of his body, and the controversial state of being of this dead-alive American. The entropic phenomena in all aspects described by Sontag unroll a real picture of 1960s' American life. Her display of Diddy's entropic life thus has an apocalyptic sense.

Key words: Susan Sonag, Death Kit, entropic life, silence