Novelist and essayist Hilary Masters recreates a moment in 1940s Pittsburgh when circumstances, ideology, and a passion for the arts collided to produce a masterpiece in another part of the world. E. J. Kaufmann, the so-called "merchant prince" who commissioned Frank Lloyd Wright's Fallingwater, was a man whose hunger for beauty included women as well as architecture. He had transformed his family's department store into an art deco showcase with...