Authors Kashner and Schoenberger examine the tangled lives of Jackie Kennedy Onassis and her younger sister Lee B. Radziwill in this fascinating biography. The story of the two famous sisters begins with their idyllic childhood at the Bouvier summer home in East Hampton, N.Y. At times, they are close conspirators and at others jealous, competitive, and nearly estranged (Kennedy Onassis left not even "a trinket" to Radziwill in her will). The authors recreate the turbulent years when the elder sister was First Lady, bringing readers back to the Cuban missile crisis and the assassination of JFK. While Jackie struggled to rebuild her life, eventually marrying Aristotle Onassis and later becoming an editor at Doubleday, Radziwill fell for offbeat photographer Peter Beard, divorced her second husband, opened an interior design business, and married (and divorced) a film director. Readers drawn to the Kennedy mystique will savor this intricate chronicle rife with romance, tragedy, and surprising details, such as that Jackie may have helped choose JFK's paramours. The authors provide an intimate view of two sisters, both famous in their own rights.