For even the finest writer of horror or sf or detective fiction, the bookstore [...] is a ghetto. From time to time some writer, through a canny shift in subject matter or focus, or through the coming to literary power of his or her lifelong fans, or through sheer, undeniable literary chops, manages to break out. New, subtler covers are placed on these writers' books, the little blue circle with the rocket ship or the magnifying glass is withheld from the spine. This book, the argument goes, has been widely praised by mainstream critics, adopted for discussion by book clubs, chosen by the Today show. Hence it cannot be science fiction.