The place is El Salvador in 1982, at the ghastly height of its civil war. The writer is Joan Didion, who delivers an anatomy of that country's particular brand of terror - its mechanisms, rationales, and intimate relation to United States foreign policy. As ash travels from battlefields to body dumps, interviews a puppet president, and considers the distinctly Salvadoran grammar of the verb "to disappear," Didion gives us a book that is germane to any country in which bloodshed has become a standard tool of politics.

In her latest forays into the American scene, Joan Didion covers ground from Washington to Los Angeles, from a TV producer's gargantuan "manor" to the racial battlefields of New York's criminal courts. At each stop she uncovers the mythic narratives that elude other observers: Didion tells us about the fantasies the media construct around crime victims and presidential candidates; she gives us new interpretations of the stories of Nancy Reagan and Patty Hearst; she charts America's rollercoaster ride through evanescent booms and hard times that won't go away.

Inez Victor knows that the major casualty of the political life is memory. But the people around Inez have made careers out of losing track. Her senator husband wants to forget the failure of his last bid for the presidency. Her husband's handler would like the press to forget that Inez's father is a murderer. And, in 1975, the year in which much of this bitterly funny novel is set, America is doing its best to lose track of its one-time client, the lethally hemorrhaging republic of South Vietnam.

Joan Didion's electrifying first novel is a haunting portrait of a marriage whose wrong turns and betrayals are at once absolutely idiosyncratic and a razor-sharp commentary on the history of California. Everett McClellan and his wife, Lily, are the great-grandchildren of pioneers, and what happens to them is a tragic epilogue to the pioneer experience, a story of murder and betrayal that only Didion could tell with such nuance, sympathy, and suspense.

Elena McMahon walks off the presidential campaign she has been covering for a major newspaper to do a favor for her father. Elena's father does deals. And it is while acting as his agent in one such deal - a deal that shortly goes spectacularly wrong - that she finds herself on an island where tourism has been superseded by arms dealing, covert action, and assassination. The Last Thing He Wanted is a tour de force - persuasive in its detail, dazzling in its ambiguities, enchanting in its style.