Southern Lights by Danielle Steel (Hardcover, 2009)

Assistant D.A. and single mom Alexa Hamilton has just been handed the kind of case that makes careers- the trial of accused serial killer Luke Quentin. Sifting through mountains of forensic evidence, enduring Quentin's cold, suggestive stares in the courthouse, Alexa relentlessly builds her case and prepares for a high-stakes trial . . . until threatening letters throw her private life into turmoil. he letters are addressed to Alexa's beautiful 17-year-old daughter, Savannah, who Alexa has raised alone since her painful divorce years before. Alexa is certain that Quentin is behind the letters\nand that they are too dangerous to ignore. Suddenly Alexa must make the toughest choice of all\nand send her daughter back to the very place that Alexa swore she would never return- to her ex-husband's world of southern tradition, long memories, and the antebellum charm of Charleston. leven years had passed since Alexa left the South behind, fleeing the pain of her ex-husband's betrayal and t.