BLACK KNIGHT, WHITE KNIGHT
by Gloria Vanderbilt
Knopf; 299 pages; $18.95
Long before Baby M. there was Little Gloria Vanderbilt, focus of the 1934 custody trial that, she now writes, "captured people's imagination very much the way a television series like Dynasty does in this present day." The story of Vanderbilt's public childhood was well told in Once Upon a Time. Part two of the autobiography also has its share of notoriety. At 17, the budding beauty leaves Aunt Gertrude Vanderbilt Whitney's cloistered Long Island estate for an extended visit with her mother, Gloria Morgan Vanderbilt, in lively Beverly Hills. There...