I Adam by DR Hall

The apocalypse has come and gone. Technology does not exist. Community does not exist. Few humans are left. Those who remain have reverted to a caveman-like state. They hunt, eat, sleep. They do not speak. They do not create.
Only one survivor remembers language: Adam. A lonely soul of uncertain origin, he becomes something of a post-apocalyptic griot. With the end drawing near, Adam screams the story of the fall of man, a cautionary tale which only the void can hear and understand.

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