My Life as a Rat by Joyce Carol Oates
"Which should prevail: loyalty to family or loyalty to the truth? Is telling the truth ever a mistake and is lying for one's family ever justified? Can one do the right thing, but bitterly regret it? ... My Life as a Rat follows Violet Rue Kerrigan, a young woman who looks back upon her life in exile from her family following her testimony, at age twelve, concerning what she knew to be the racist murder of an African-American boy by her older brothers. In a succession of vividly recalled episodes Violet contemplates the circumstances of her life as the initially beloved youngest child of seven Kerrigan children who inadvertently "informs" on her brothers, setting into motion their arrests and convictions and her own long estrangement."--Publisher description.