A crop of new, talented crime-fiction writers has begun to make its mark — appearing on bestseller lists, earning award nominations and filling spots at respected book festivals. This is encouraging, even as the genre’s lodestars remain. Smoothly gliding through this chorus of hungry voices is Walter Mosley. His latest Easy Rawlins mystery, “Farewell, Amethystine,” shows that he is still at the top of a genre he helped to pioneer.
