Sherrilyn Kenyon in her Franklin, Tennessee, home. Photo: Tamara Reynolds Sherrilyn Kenyon, one of the world’s most successful authors of paranormal romance novels, lives on a wooded cul-de-sac in Franklin, Tennessee, a wealthy suburb of Nashville. When she moved there in 2011, seven of her books sat on the New York Times best-seller list, and in a speech she gave at a conference that year, she thanked her husband for never losing faith in her — for remaining by her side as they teetered on the edge of homelessness. But in the years that followed, the romantic narrative she’d told about their life took a series of turns so dramatic and morbid they almost could have been lifted from one of her novels. Her career foundered, her health eroded, her marriage crumbled, and, according to a lawsuit she recently filed, the dream home where she and her husband had raised their three children turned into a crime scene. It was there, Kenyon alleges, that her ex and one of her former assistants hatched a “Shakespearean plot” to murder her by poison. Kenyon filed the complaint in January, about nine months after her husband sued for divorce. In the sprawling 81-page…