Henry Bech, the moderately well known Jewish-American writer who served as the hero of John Updike's previous "Bech: A Book (1970) and "Bech Is Back (1982), has become older but scarcely wiser. In these five new chapters from his life, he is still at bay, pursued by the hounds of desire and anxiety, of unbridled criticism and publicity in a literary world ever more cheerfully crass. He fights intimations of annihilation in still-Communist Czechoslovakia, while promiscuously consorting with dissidents, apparatchiks, and Midwestern Republicans. Next, he succumbs to the temptations of power by...