Janet Frame, born in 1924, is New Zealand's most celebrated and least public author. Her early life in small South Island towns seemed, at times, engulfed in a tide of doom: one brother still-born, another epileptic; two sisters dead of heart failure while swimming; Frame herself committed to mental hospitals for the best part of a decade. Later, her surviving sister was temporarily felled in adulthood by a stroke, an uncle cut his throat and a cousin...