In 1972, I attended a conference at Frank Lloyd Wright's famous house, Taliesin, I've carried a vision of it ever since: its startlingly flat planes, the Oriental lines of its roofs, the way it snugs into the side of a Wisconsin hill. And indoors, the Zen-like simplicity of furnishings, the wide windows that open onto green landscape, and the glowing walls that seem to shimmer with their own inner light. I can understand why Mamah Borthwick Cheney fell in love with its architect and loved him with an outrageous passion until she died. I may have been a little in love with him myself when I left that remarkable house.

Loving Frank is a fictional recreation of the true story of the adulterous affair with Wright that pulled Mamah Cheney away from her young children, her husband, and their prosperous, comfortable life in Oak Park, Illinois. Wright himself was married, the father of six children, and a rising young architect. The two were drawn together in 1903 when Wright designed a house for the Cheneys.

Mamah Borthwick was a scholar and feminist when she married Edwin Cheney, and one of the things Nancy Horan does best in this tumultuous novel is to show how the egotistical, charismatic Wright reawakens her desire to be more than simply a mother and wife-to dream dreams impossible for those whose existences are constrained by convention. Horan also brings to life Mamah's terrible dilemma: how to create and sustain a life based on passion when that means giving up her two children, whom she also deeply loves. And Horan tellingly illuminates the conflicted relationship between Mamah and Ellen Key, a Swedish feminist and writer whose liberal ideas about sex, marriage, and child-care were far ahead of her time.

Loving Frank is all the more remarkable because it is Nancy Horan's first novel. The pace and intensity may lag a bit in the middle and drop off after the tragic events of 1914. And since this is a life-based fiction, I might have wished for a more detailed documentation of sources. Still, these are minor reservations about what is overall a fine achievement, a rich, compellingly imaginative work that allows us to see into the private emotional lives of two intriguing people: the man who significantly influenced American architecture for over fifty years, and the woman who loved him.