S.F. Kosa is a clinical psychologist with a fascination for the seedy underbelly of the human psyche. Though The Quiet Girl is her debut psychological suspense novel, writing as Sarah Fine, she is the author of over two dozen fantasy, urban fantasy, sci-fi, and romance novels, several of which have been translated into multiple languages. She lives in Massachusetts with her husband and their (blended) brood of five young humans.
