Book excerpt: A comprehensive biography of the late designer, Karl Lagerfeld, and his infamous rivalry with Yves Saint Laurent. In the 1970s, Paris fashion exploded like a champagne bottle left out in the sun. Amid sequins and longing, celebrities and aspirants flocked to the heart of chic, and Paris became a hothouse of revelry, intrigue, and searing ambition. At the center of it all were fashion's most beloved luminaries - Yves Saint Laurent, the reclusive enfant terrible, and Karl Lagerfeld, the flamboyant freelancer with a talent for reinvention - and they divided Paris into two fabulous halves. Their enduring rivalry is chronicled in this dazzling exposè of an era: of social ambitions, shared obsessions, and the mesmerizing quest for beauty. "Deliciously dramatic... The Beautiful Fall crackles with excitement."-New York Times Book Review "Fascinating." -New York Times "Addictive." -Philadelphia Inquirer "It's like US Weekly, 1970s style." -Gotham "A story constructed as exquisitely as a couture dress. . . . It moves stylishly forward, with frequent over-the-shoulder glances at some very dishy background." -Boston Globe