Steve Luxenberg, author of "Annie's Ghosts: A Journey Into a Family Secret" and associate editor of the Washington Post, Discusses his book as part of the Dresser Center's Humanities Forum. Part memoir, part detective story, part history, "Annie's Ghosts" tells a remarkable story. Two sisters, born two years apart to immigrant parents, grow up in Depression-era Detroit. One—Beth, Steve Luxenberg's mother—escaped eight years of low-paying jobs and her family's walk-up apartment by marrying and moving away from the neighborhood that she equates with broken promises and broken lives. The other sister? She was his mother's secret.