Intensity

okay?" Laura said. "Don't tell him about this promise until after the wedding. Some guys might be put off by it."
        From elsewhere in the vineyards came a disquieting sound that stopped Chyna. A protracted creaking.
        "It's just the breeze working at a loose barn door, rusty hinges," Laura said.
        It sounded as if someone were opening a giant door in the wall of night itself and stepping in from another world.

    
        Chyna Shepherd could not sleep comfortably in strange houses. Throughout her childhood and adolescence, her mother had dragged her from one end of the country to the other, staying nowhere longer than a month or two. So many terrible things had happened to them in so many places that Chyna eventually learned to view each new house not as a new beginning, not with hope for stability and happiness, but with suspicion and quiet dread.
        Now she was long rid of her troubled mother and free to stay only where she wished. These days, her life was almost as stable as that of a cloistered nun, as meticulously planned as any bomb squad's procedures for disarming an explosive device, and without any of the turmoil on which her mother had thrived.
        Nevertheless, this first night in the Templetons' house, Chyna was reluctant to undress and go to bed. She sat in the darkness in a medallion-back armchair at one of the two windows in the guest room, gazing out at the moonlit vineyards, fields, and hills of the Napa Valley.
        Laura was in another room, at the far end of the second-floor hall, no doubt sound asleep, at peace because this house was not at all strange to her.
        From the guest-room window, the early-spring vineyards were barely visible. Vague geometric patterns.
        Beyond the cultivated rows were gentle hills mantled in long dry grass, silver in the moonlight. An inconstant breeze stirred through the valley, and sometimes the wild grass seemed to roll like ocean waves across the slopes, softly a glimmer with lambent lunar light.
        Above the hills was the Coast Range, and above those peaks were cascades of stars and a full white moon. Storm clouds coming across the mountains from the northwest would soon darken the night, taming the silver hills first to pewter and then to blackest iron.
        When she heard the first scream, Chyna was gazing at the stars, drawn by their cold light as she had been since childhood, fascinated by the thought of distant worlds that might be barren and clean, free of pestilence. At first the muffled cry seemed to be only a memory, a fragment of a shrill argument from another strange house in the past, echoing across time. Often, as a child, eager to hide from her mother and her mother's friends when they were drunk or high, she climbed onto porch roofs or into backyard trees, slipped through windows onto fire escapes, away to secret places far from the fray, where she could study the stars and where voices raised in argument or sexual excitement or shrill drug-induced giddiness came to her as though from out of a radio, from faraway places and people who had no connection whatsoever with her life.
        The second cry, though also brief and only slightly louder than the first, was indisputably of the moment, not a memory, and Chyna sat forward on her chair. Tense. Head cocked. Listening.
        She wanted to believe that the voice had come from outside, so she continued to stare into the night, surveying the vineyards and the hills beyond. Breeze-driven waves swelled through the dry grass on the moon-washed slopes: a water mirage like the ghost tides of an ancient sea.
        From elsewhere in the large house came a soft thump, as though a heavy object had fallen to a carpeted floor.
        Chyna immediately rose from the chair and stood utterly still, expectant.
        Trouble often followed voices raised in one kind of passion or another. Sometimes, however, the worst offenses were preceded by calculated silences and stealth.
        She had difficulty reconciling the idea of domestic violence with Paul and Sarah Templeton, who had seemed kind and loving toward each other as toward their daughter. Nevertheless, appearances and realities were seldom the same, and the human talent for deception was far greater than that of the chameleon, the mockingbird, or the praying mantis, which masked its ferocious cannibalism with a serene and devout posture.
        Following the stifled cries and