Monday 4/3: Brooks Arthur Wachtel discusses and signs Lady Sherlock: Circle of the Smiling Dead. 7 p.m. at Book Soup. Tuesday 4/4: Bradley Spinelli with Robert Anasi discusses and signs The Painted Gun. 7 p.m. at Book Soup. Jenny Nordbak discusses her book The Scarlett Letters. 7:30 p.m. at Skylight Books.