Silver Sparrow by Tayari Jones
Dana is the secret daughter of James, who is married and has another family across town. Set in Atlanta in the 1980s, and struggling with her shame and anger when she realizes that she is the illegitimate daughter, Dana becomes obsessed with her half-sister Chaurisse, who has no idea that Dana and her mother exist. And then one day, Dana and Chaurisse’s paths inexorably cross, and the secrets kept, begin to unravel. This is a disquieting coming-of-age novel that examines the obligations and bonds that make up love and family.