JON CLINCH's debut novel, Finn, is a darkly written story about one of American literature's most cruel and mysterious figures: Huckleberry Finn's father. With prose as thick and sweet as molasses, Clinch picks up where Mark Twain's The Adventures of Huckleberry Finn left off, craftily recreating the already well-known characters. Tonight, Mon., MARCH 5, he signs and reads from Finn at the Georgia Center for the Book. For a CL podcast with Jon Clinch, click here. Free. 7:15 p.m. 215 Sycamore St., Decatur. 404-370-3070. www.georgiacenterforthebook.org.