 novel about virtue and sin, Robert Wilson teamed up with Bernice Johnson Regan, a teacher, scholar, activist, and Smithsonian curator emeritus, as well as founder and co-director of Sweet Honey in the Rock, the long-standing African-American female a cappella group. The collaboration is compelling as it is inspirational. Where Wilson is as modern as they come artistically, Regan is a traditionalist. Regan is a traditionalist.