IT would seem the Booker judges have had enough of celebrating the fringe. And controversy. For, no matter which book they pick on November 7, they can be sure it will be a wholesome, old-fashioned exercise in storytelling. However, while the quintet is as solid as can be (in contrast to last year's shortlist which led to fears about the death of the novel), some noteworthies are conspicuous by their absence. Is it a distaste for commercialism which kept out Martin Amis'