She was a nightingale.

Zoe wasn’t sure where it came from; she herself could barely carry a tune. Hobson senior had liked music (the Clash, the Sex Pistols), but in their short time together, Zoe couldn’t remember his singing anything but “Should I Stay or Should I Go?” once, at a chefs’ after-hours party.

If Zoe was to be very honest with herself, she would have to admit she wasn’t sure that Penelope’s voice was an unadulterated blessing. At times, Penny seemed almost burdened by it. Her voice had to be cared for like some exotic pet-a macaw, maybe, or a rare breed of chinchilla. Penny wouldn’t eat spicy food or drink coffee; she wrapped her throat in a warm, damp cloth at night as she lay in bed and listened to Judy Collins sing “Send In the Clowns” over and over again. She couldn’t stand smoke of any kind; every winter she begged Zoe to get rid of the woodstove.

It was during the year that Penny turned thirteen, which was also the year that she started her period, which was also the year that Ava and Jordan’s baby died, that Zoe heard her sobbing in her bedroom one night. Zoe knocked, and when Penny didn’t answer, she walked right in. She found Penny sitting on the floor of her closet, hugging herself and rocking in a way that made Zoe think that this sobbing was a ritual that she had missed many times before. Zoe had to pull Penny from the closet and drag her to the bed before demanding a reason for her tears.

“What is it?” Zoe asked. “What’s wrong?”

Penny said that she felt like there was less love in the world for her than for other people. Because she had no father.

Whoa: that answer had leveled her. Hobson senior had died of a heart attack when Zoe was seven months pregnant with the twins. Zoe had given birth to them alone; she had raised them out of infancy alone. She had hunted for a job as a private chef, and an opportunity on Nantucket had fallen into her lap. She had moved to the island, she had bought the cottage, she had put the kids in day care, and she had worked for the Allencast family on upper Main Street. The Allencasts paid her a generous salary that included health insurance and an IRA, they gave her flexible hours, and they introduced her to people who provided her with side jobs. Zoe suddenly had a role on the island: she was an elite personal chef, as well as the mother of two exceptional kids. There were certainly times when Zoe felt like she was doing nothing right, but there were also times when she felt like she was doing something right.

But watching Penny sob and hiccup and fight for breath that night because she had no father made Zoe feel certain she had done nothing right. Nothing in thirteen years.

She said, “I love you twice as much as any other mother loves her child.” She had grabbed Penny around the shoulders and kissed her fiercely in the part of her hair. “Goddammit, you know that, Penny.” She had feared the kids would grow up with an empty space in them. She had worried it would be Hobby who would suffer, but Hobby had always had men in his life-coach after coach, and the admiring fathers of his friends. Jordan was like a father to him, as was Al Castle. But it wasn’t Hobby Zoe had to worry about; it was Penny.

Zoe tightened her grip on her daughter and noticed how Penny seemed to slip through her grasp, like a handful of butter. Zoe had done all she could, but she couldn’t be two people at once.

Zoe took Penny to see a psychologist. It was one more thing for Zoe to fit into her already bursting schedule, one more thing for her to pay for, but it had to be done. The psychologist, a kind, plain woman named Marcy, met with Penny alone half a dozen times before finally talking with Zoe.

“She’s a terrific kid,” Marcy said.

“Thank you,” Zoe said. She smiled, waiting for more. Marcy smiled back, bobbing her head.

“That’s it?” Zoe asked.

“Well…,” Marcy said. She held her palms out, as if trying to show Zoe something-a baby chick or a milkweed pod-that Zoe couldn’t see. “Penelope has a heart made from the finest bone china. Just be aware.”

A heart made from the finest bone china? Zoe thought. That had been one of the rare times when she had craved a partner, a spouse, a husband, someone to turn to and ask, “Can you believe this crap?”

That was the end of Marcy the psychologist. “Just be aware”: ha! Zoe was aware of that and a lot more. She would take care of her daughter herself.

Zoe had heard warnings from other mothers since Penny was a little girl: “She’s cute now, but just you wait!” Something sinister lurked on the horizon; it would roll in like bad weather. Adolescence. But Zoe and Penny had remained close. They were best friends. As a parenting strategy, this was neither popular nor fashionable, but Zoe didn’t care. She loved her intimacy with her daughter. There were nights when Penny climbed into Zoe’s bed and the two of them slept next to each other, sharing a pillow like orphaned sisters. Zoe continually told both the twins, “You can tell me anything.” There would be no judgment, nothing to fear. She loved them unconditionally. “You can tell me anything.”

And right up until the day she died, Penny had told Zoe everything, or what Zoe had assumed was everything.

JAKE

They flew to Boston, then boarded a shuttle bus that would take them to the international terminal. Jake’s father kept doing the shoulder thing. He didn’t touch Jake’s mother at all, not even accidentally, but that wasn’t unusual. Jake’s mind was spinning and flashing like a police light. Escape! Get back home! He was ten months away from his eighteenth birthday.

The dirt on Penny’s grave was as moist and black as chocolate cake. Grass would grow over it, but Jake couldn’t decide if that would make things better or worse.

Terminal E. Boston to LAX, LAX to Sydney. After that interminable trip, another six-hour flight to Perth. They were traveling to the other side of the world.

Their gate was filled with jolly Australians. Was there such a thing as a national temperament? Jake wondered. Or were there Australians out there somewhere who weren’t open and friendly and affable? Jake’s mother perked up as soon as she heard the accent. It was as if she had been transported into an episode of Home and Away, the Australian soap opera that she watched incessantly on the bootlegged DVDs sent to her by her sister May. She swung her hair around gracefully and said, “I’m going for a coffee. You want?”

“No, thank you,” Jake’s father whispered.

Jake shook his head.

His mother gave him a genuine smile, an event that was so rare it actually spooked him. She was the unhappiest person Jake knew, though she hadn’t always been that way. Before Jake’s infant brother, Ernie, had died, Ava had been normal and momlike, maybe a little annoying, maybe a little uptight and preoccupied with giving Jake a sibling. But there were pictures of Ava in the red photo album where she was making silly faces and kissing baby Jake and Jake’s father. There were pictures of her before Jake was born where she was deeply tanned and wearing a bikini, her golden-brown hair braided down her back. There were pictures of her surfing and kayaking and one of her leaping in midair, getting ready to pummel a volleyball. Jake used to stare at these pictures. That was the woman he wanted to claim as his mother. But since Ernie had died in his crib at eight weeks old, Ava had become jagged and shrill half the time, and mute and despondent the other half. Anger and bitterness-which were really sadness and deep, deep grief, his father said-lived inside her like a monster. Jake’s father pleaded with Jake to try and forgive her for the way she sometimes acted. But it was too much to ask, Jake thought. Jake had grown calluses over his nerve endings where his mother was concerned.

Ernie had a tombstone in the cemetery, just as Penny now did. Jake’s mother tended the plot at Ernie’s grave; she bought bouquets of supermarket flowers every week. When Ava was home, she sequestered herself in the room where Ernie had-for no good or explicable reason-stopped breathing. Ava either watched episodes of Home and Away or reread passages of her favorite book, which was, shockingly, not an Australian classic but rather that most American of novels, Moby-Dick, because her father had read it to her when she was a child. Ernie’s grave, the soap opera, Moby-Dick: these comprised 90 percent of the life of Ava Randolph. It was the other 10 percent, her interactions with the outside world, that glinted like shards of broken glass on the side of the road. There was her anger, which could take anyone’s eye out like an errant arrow. And there was her venom, which she seemed to save solely for Jake’s father.

Ava was present for the important stuff at school, such as Jake’s induction into the National Honor Society and the final night of the musical. This past year, the musical had been Grease, with Jake playing Danny and Penny playing Sandy. His mother had taken a shower and brushed out her hair. She had put on makeup and perfume. She had entered the auditorium with her head held high and her eyes defiant, his father trailing three steps behind her like a loyal servant. Jake had peered at them from behind the heavy stage curtain. He could hear the audience murmuring: Ava Randolph was out. Sightings of her were as rare as comets, and everyone knew why, so everyone kept a respectful distance-except Lynne Castle, his mother’s only stalwart friend. Lynne plopped herself down next to Ava and kissed the side of her face as though nothing were amiss, as though Ava weren’t capable of lashing out even at her, or of standing up and walking out of the auditorium for no reason at all.