Block is a master of narrative style and technique, a first-rate deviser of plots, and a supremely talented inventor of characters. His Matthew Scudder novels are absolutely first-rate, but I read pretty everything else he writes, too. And this story of sacrifice, redemption, and personal discovery is one of his best. It’s also, I think, the first novel I’ve read in which the events of 9/11, 2001 are a key factor in the plot, not directly, but in motivating the actions of the Bad Guy -- though he’s not really evil, just nuts. “The Carpenter,” as the media call him because of the tools with which he commits his early murders, loves the city and believes it requires periodic blood sacrifice to continue to thrive. And that’s where he comes in. One murder -- which we never actually are told was one of his, and there’s a clue pointing elsewhere in the very last chapter -- gets pinned, from quite reasonable evidence, on John Blair Creighton, a novelist who is successful but not wildly so. (“You can’t make a living at writing but you can make a fortune,” as they say.) But he’s on the edge of a breakthrough. An acquaintance of that murder victim is Susan Pomerance, proprietor of an art gallery and possessed of a ferocious sexuality. Susan becomes involved with Francis J. Buckram, ex-NYC police commissioner and hot prospect for the next mayoral race. Francis has his own problems, trying to figure out what else to do with his life, but having been a pretty fair detective in his day, he becomes engrossed in the Carpenter murders. Maury Winters, famed defense attorney and a piece of work, takes on Creighton’s defense, has a longstanding relationship with Susan, and also knows the movers and shakers in town, including Buckram. Jerry Pankow, a gay ex-addict, discovers a number of the Carpenter’s victims -- not all happenstantially, either -- and there goes his business. And there are any number of lesser characters -- writers, editors, piercers, bouncers, private detectives, you name it -- who seem also to fall in with each other. After all, New York is a very big city but it’s also just a small town.