During the early 1980s, use of crack cocaine by expectant mothers introduced U.S. schools and social agencies to a large cohort of children with attachment problems, attention and learning difficulties, hyperactivity and other abnormal behaviors. Research focused on the early characteristics and needs of so-called "crack kids," but little information about how these children are faring as they enter adulthood has been published. This paper presents a detailed four-year case study, including psychological profile, parent reports, school records, information from probation agencies and daily observations of an adolescent exposed to crack cocaine in utero. Information about social, emotional and intellectual development of the subject during late adolescence is the focus of this paper. Suggestions for preparing society to better deal with increasing numbers of young adults with similar profiles are also included. (Contains 4 tables.)