ROBERT SILVERBERG is a giant in the sci-fi genre, with four Hugo Awards and six Nebula Awards to his name. He was inducted into the Science Fiction and Fantasy Hall of Fame in 1999 and named a Grand Master by the Science Fiction and Fantasy Writers of America Guild in 2005. At present, there is a resurgence of interest in Silverberg’s short fiction. His short story “Needle in a Timestack” (included in Time and Time Again) is being adapted for the screen by Oscar-winning writer John Ridley (12 Years a Slave).