Robert A. Ferguson investigates the nature of loneliness in American fiction, from its mythological beginnings in Rip Van Winkle to the postmodern terrors of 9/11. At issue is the dark side of a trumpeted American individualism. The theme is a vital one because a greater percentage of people live alone today than at any other time in U.S. history.

The many isolated characters in American fiction, Ferguson says, appeal to us through inward claims of identity when pitted against the social priorities of a consensual culture. They indicate how we might talk to ourselves when the same...