On this episode of Arts & Letters , we talk with Arkansas novelist and memoirist Cara Brookins about her book, Little Boy Blu, a novel loosely based on the "blue people" of Hazard County, Kentucky, who suffered from methemoglobinemia. This rare hereditary blood disorder results from excess levels of methemoglobin in the blood. It is passed on as a recessive gene, which turns the skin blue. In Little Boy Blu , we explore the hills and hollers, make our way through a copse of trees and into