“Bat Wing” is a mystery novel stuffed with deep, dark secrets, vividly memorable characters, with an explicit tone of voodoo and the supernatural, all held together in an air of impending disaster. Private detective Paul Harley gets hired by Cuban Colonel Menendez to investigate a strange occurrence; apparently someone has left a bat wing nailed on his door. When Harley and his colleague Knox arrive at Colonel's estate they are in for an unpleasant surprise.