Excerpt from The Empty Family by Colm Toibin, plus links to reviews, author biography & more

Over the weeks that followed and in London when she returned home, she discovered that Wilfrid Scawen Blunt's talents as a poet were minor compared to his skills as an adulterer. Not only could he please her in ways that were daring and astonishing but he could ensure that they would not be discovered. The sanctity of his calling required him to have silence, solitude and quarters that his wife had no automatic right to enter. Blunt composed his poems in a locked room. He rented this room away from his main residence, choosing the place, Lady Gregory saw, not because of the ease with which it could be visited by the muses but rather for its position in a shadowy side-street close to streets where women of circumstance shopped. Thus no one would notice a respectable woman who was not his wife arriving or leaving in the mornings or the afternoons; no one would hear her cry out as she lay in bed with him; no one would ever know that each time in the hour or so she spent with him she realized that nothing would be enough for her, that she had not merely visited the temple as a tourist might, but had come to believe in and deeply need the sweet doctrine preached in its warm and towering confines.

At the beginning, she didn't dream of being caught. Sir William was often busy in the day; he enjoyed having a long lunch with old associates, or a meeting of some sort about the National Gallery or some political or financial matter. It seemed to make him content that his wife went to the shops or to visit her friends as long as she was free in the evenings to accompany him to dinners. He was usually distant, quite distracted. It was, she thought, like being a member of the cabinet with her own tasks and responsibilities with her husband as prime minister, her husband happy that he had appointed her, and pleased, it appeared, that she carried out her tasks with the minimum of fuss.

Soon, however, when they were back in England a few months, she began to worry about exposure and to imagine with dread not his accusing her, or finding her in the act, but what would happen later. She dreamed, for example, that she had been sent home to her parents' house in Roxborough and she was destined to spend her days wandering the corridors of the upper floor, a ghostly presence. Her mother passed her and did not speak to her. Her sisters came and went but did not seem even to see her. The servants brushed by her. Sometimes, she went downstairs, but there was no chair for her at the dining table and no place for her to sit in the drawing room. Every place had been filled by her sisters and her brothers and their guests and they were all chattering loudly and laughing and being served tea and, no matter how close she came to them, they paid her no attention.

The dream changed sometimes. She was in her own house in London or in Coole with her husband and with Robert and their servants but no one saw her, they let her come in and out of rooms, forlorn, silent, desperate. Her son appeared blind to her as he came towards her. Her husband undressed in their room at night as though she were not there and turned out the lamp in their room while she was still standing at the foot of the bed fully dressed. No one seemed to mind that she haunted the spaces they inhabited because no one noticed her. She had become, in these dreams, invisible to the world.

Despite Sir William's absence from the house during the day and his indifference to how she spent her time as long as she did not cost him too much money, she knew that she could be unlucky. Being found out could happen because a friend or an acquaintance or, indeed, an enemy could suspect her and follow her, or Lady Anne could find a key to the room and come with urgent news for her husband or visit suddenly out of sheer curiosity. Blunt was careful and dependable, she knew, but he was also passionate and excitable. In some fit of rage, or moment where he lost his composure, he could easily, she thought, say enough to someone that they would understand he was having an affair with the young wife of Sir William Gregory. Her husband had many old friends in London. A note left at his club would be enough to cause him to have her watched and followed. The affair with Blunt, she realized, could not last. As months went by, she left it to Blunt to decide when it should end. It would be best, she thought, if he tired of her and found another. It would be less painful to be jealous of someone else than to feel that she had denied herself this deep fulfilling pleasure for no reason other than fear or caution.

Excerpted from The Empty Family by Colm Toibin. Copyright © 2011 by Colm Toibin. Excerpted by permission of Scribner. All rights reserved. No part of this excerpt may be reproduced or reprinted without permission in writing from the publisher.