Tayari Jones’ Silver Sparrow is set in a middle-class neighborhood in Atlanta in the 1980s.  The opening line of the novel, "My father, James Witherspoon, is a bigamist," launches a breathtaking story about a man's deception, a family's complicity, and the two teenage girls caught in the middle.  Silver Sparrow is the third stunning novel from an author deemed "one of the most important writers o…