When Siddalee Walker, oldest daughter of Vivi Abbott Walker, Ya-Ya extraordinaire, is interviewed in the New York Times about a hit play she's directed, her mother gets described as a "tap-dancing child abuser." Enraged, Vivi disowns Sidda. Devastated, Sidda begs forgiveness, and postpones her upcoming wedding. All looks bleak until the Ya-Yas step in and convince Vivi to send Sidda a scrapbook of their girlhood mementos, called "Divine Secrets of...