Meet French author Anne Berest (The Postcard), who co-wrote with her sister Claire Berest, Gabriële, an atmospheric, exuberant novel based on the life of their great grandmother. It tells the story of Gabriële Buffet, a pioneering French woman and her relationships with artists Francis Picabia and Marcel Duchamp. Their tempestuous love triangle helped redefine art and creativity in the years leading up to WWI.