Donald believes he knows all there is to know about seeing. An optometrist in suburban Boston, he is sure that he and his wife, Viv, who runs the local stables, are both devoted to their two children and to each other. Then Mercury?a gorgeous young thoroughbred with a murky past?arrives at Windy Hill and everything changes.

Mercury's owner, Hilary, is a newcomer to town who has enrolled her daughter in riding lessons. When she brings Mercury to board at Windy Hill, everyone is struck by his beauty and prowess, particularly Viv. As she rides him, Viv begins to dream of competing again, embracing the ambitions that she had harbored, and relinquished, as a young woman. Her daydreams soon morph into consuming desire, and her infatuation with the thoroughbred escalates to obsession.

Donald may have 20/20 vision but he is slow to notice how profoundly Viv has changed and how these changes threaten their quiet, secure world. By the time he does, it is too late to stop the catastrophic collision of Viv's ambitions and his own myopia.

At once a tense psychological drama and a taut emotional thriller exploring love, obsession, and the deceits that pull a family apart, Mercury is a riveting tour de force that showcases this ?searingly intelligent writer at the height of her powers? (Jennifer Egan).

Margot Livesey is the New York Times bestselling author of the novels The Flight of Gemma Hardy, The House on Fortune Street, Banishing Verona, Eva Moves the Furniture, The Missing World, Criminals, and Homework. Her work has appeared in the New Yorker, Vogue, and the Atlantic, and she is the recipient of grants from both the National Endowment for the Arts and the Guggenheim Foundation. The House on Fortune Street won the 2009 L. L. Winship/PEN New England Award. Born in Scotland, Livesey currently lives in the Boston area and is a professor of fiction at the Iowa Writers' Workshop.