Still, it was the arrowheads that kept Will’s attention; they were handmade, filed out of the local stone. Each one had a line of blood at the tip. Whether these mementos had been kept as proof of human cruelty or human frailty was uncertain. All that was known was what a farmer named Hathaway had written of his own experience in his journal, indexed in the historical records room at the library on Main Street. Hathaway had gone down to the docks to retrieve a mirror, an extremely expensive gift for his wife, in the time when the marshes were still a deep harbor, not yet filled in by mud and silt. But after claiming his treasure, ordered a year earlier and all that time at sea, Hathaway had stumbled over the roots of a twisted swamp ash; before he had time to steady his hold, the mirror had fallen and broken into a hundred bright pieces. Hathaway had stood there for a very long time, wondering how he would explain himself to his wife; he stayed so long, in fact, that he’d been the only witness when Rebecca Sparrow walked over the broken glass, her arms piled high with laundry, barefoot and bleeding, but not uttering a single cry.

As soon as the boys on the farms around Unity discovered that Rebecca Sparrow could not feel pain, they began to shoot at her with arrows, for sport. They tracked her as they would a pheasant or a deer, relentlessly, forsaking the rules of charity. They cheerfully took aim whenever they came upon her at the far end of Hourglass Lake, where she took in laundry from the wives in town who could afford to send dirty homespun and linens out to be washed by someone whose hands were already burned from lye. Several of these boys left behind guilt-ridden letters, now in the Unity library, documenting the fact that their target never once flinched. Rebecca only slapped at herself, as though fending off mosquitoes; she kept to her work, washing the woolen laundry with the strongest soap, made out of ashes and fat, carefully soaking the delicate silks in green tea. She didn’t notice when she’d been struck, not until she went home and undressed. Only then did she discover she’d been wounded by one of their arrowheads. She had no idea she’d been hurt until she traced a finger over the trail of blood that had been left behind.

WAS IT ANY WONDER that Jenny was so apprehensive as her daughter’s thirteenth birthday drew near? She so dreaded the day she had already bitten her nails down to the quick, a girlhood habit that reappeared in trying times. Perhaps others forgot their own histories, but Jenny remembered hers only too well. She remembered racing across the cool, dewy grass as though it had happened hours ago. She could instantly bring to mind the trill of the peepers and the way her heart had felt, thumping against her chest as she and Will stood in the parlor, examining the memento case. It was this memory that caused Jenny to stay up all night long on the eve of Stella’s birthday, perched on a chair beside the bed as her daughter slept. It was the fact that thirteen had been reached yet again that left Jenny’s dark hair in knots, her complexion ashen, her nails bitten until her fingertips bled.

Let her wake as she was when she closed her eyes. That was all Jenny asked for. That was all she begged for on this March night that was perfectly equal to the day, unique in all the season. Let her be the same sweet girl, unburdened by gifts or sorrow.

There they were, the guarded and the guardian, but it was impossible to ward off time, no matter how vigilant or alert an individual might be. Jenny knew the hour had come when she heard the morning traffic echo on Commonwealth Avenue and Storrow Drive. Blink and the years passed right by you. Turn around twice and you were walking in the land of the future. Daylight was breaking over Marlborough Street, and it would continue to do so even if Jenny kept the curtains drawn and the door bolted shut. Newspapers were being delivered, trash was collected in the alleyways, pigeons were cooing on windowsills and telephone lines. The day had begun, cool and clear and absolutely impossible to avoid.

Stella opened her eyes to see her mother staring at her. Always a sign of trouble, to have your mother huddled over you, watchful as a bulldog with all those knots in her hair. Always a bad start to a day, birthday or not. Stella leaned up on her elbows, her eyes rimmed with sleep dust. She hadn’t bothered to unbraid her hair and now a halo of stray bits stuck up from her scalp. All night she had dreamed of dark water, and now she blinked in the sharp morning light.

“What are you doing here?” Stella’s voice was still dream-infected. Jenny understood why the words sounded liquid; she had dozed off and caught a bit of her daughter’s dream, and it brought her little comfort. Jenny Sparrow knew precisely where the water was darkest, where it never seemed to end, and so she’d drunk coffee and cola and kept alert. “What are you looking at?” Stella asked when her mother didn’t respond, annoyance creeping into her voice.