AFTER TWO HOURS OF LIVING with my sister again, I’m finding it hard to believe we ever comfortablyshared a womb. Isobel has already organized my CDs by year of release, swept under the couch, and tossedout half the food in my refrigerator. “Dates are our friend, Julia.” She sighs. “You have yogurt in here fromwhen Democrats ruled the White House.”

I slam the door shut and count to ten. But when Izzy moves toward the gas oven and starts looking for thecleaning controls, I lose my cool. “Sylvia doesn’t need cleaning.”

“That’s another thing: Sylvia the oven. Smilla the Fridge. Do we really need to name our kitchenappliances?”

My kitchen appliances. Mine, not ours, goddammit. “I’m totally getting why Janet broke up with you,” Imutter.

At that, Izzy looks up, stricken. “You are horrible,” she says. “You are horrible and after I was born I shouldhave sewed Mom shut.” She runs to the bathroom in tears.

Isobel is three minutes older than me, but I’ve always been the one who takes care of her. I’m her nuclearbomb: when there’s something upsetting her, I go in and lay waste to it, whether that’s one of our six olderbrothers teasing her or the evil Janet, who decided she wasn’t gay after seven years into a committedrelationship with Izzy. Growing up, Izzy was the Goody Two-shoes and I was the one who came up fighting—swinging my fists or shaving my head to get a rise out of our parents or wearing combat boots with myhigh school uniform. Yet now that we’re thirty-two, I’m a card-carrying member of the Rat Race; while Izzyis a lesbian who builds jewelry out of paper clips and bolts. Go figure.

The door to the bathroom doesn’t lock, but Izzy doesn’t know that yet. So I walk in and wait till she finishessplashing cold water on her face, and I hand her a towel. “Iz. I didn’t mean it.”

“I know.” She looks at me in the mirror. Most people can’t tell us apart now that I have a real job thatrequires conventional hair and conventional clothes. “At least you had a relationship,” I point out. “The lasttime I had a date was when I bought that yogurt.”

Izzy’s lips curve, and she turns to me. “Does the toilet have a name?”

“I was thinking of Janet,” I say, and my sister cracks up.

The telephone rings, and I go into the living room to answer it.

“Julia? This is Judge DeSalvo calling. I’ve got a case that needs a guardian ad litem, and I’m hoping youmight be able to help me out.”

I became a guardian ad litem a year ago, when I realized that nonprofit work wasn’t covering my rent. AGAL is appointed by a court to be a child’s advocate during legal proceedings that involve a minor. You don’thave to be a lawyer to be trained as a GAL, but you do have to have a moral compass and a heart. Which,actually, probably renders most lawyers unqualified for the job.

“Julia? Are you there?”

I would turn cartwheels for Judge DeSalvo; he pulled strings to get me a job when I first became a GAL.

“Whatever you need,” I promise. “What’s going on?”

He gives me background information—phrases like medical emancipation and thirteen and mother with legalbackground float by me. Only two items stick fast: the word urgent, and the name of the attorney.

God, I can’t do this.

“I can be there in an hour,” I say.

“Good. Because I think this kid needs someone in her corner.”

“Who was that?” Izzy asks. She is unpacking the box that holds her work supplies: tools and wire and littlecontainers of metal bits that sound like teeth gnashing when she sets them down.

“A judge,” I reply. “There’s a girl who needs help.”

What I don’t tell my sister is that I’m talking about me.

Nobody’s home at the Fitzgerald house. I ring the doorbell twice, certain this must be a mistake. From whatJudge DeSalvo’s led me to believe, this is a family in crisis. But I find myself standing in front of a well-keptCape, with carefully tended flower gardens lining the walk.

When I turn around to go back to my car, I see the girl. She still has that knobby, calf-like look of preteens;she jumps over every sidewalk crack. “Hi,” I say, when she is close enough to hear me. “Are you Anna?”

Her chin snaps up. “Maybe.”

“I’m Julia Romano. Judge DeSalvo asked me to be your guardian ad litem. Did he explain to you what thatis?”

Anna narrows her eyes. “There was a girl in Brockton who got kidnapped by someone who said they’d beenasked by her mom to pick her up and drive her to the place where her mom worked.”

I rummage in my purse and pull out my driver’s license, and a stack of papers. “Here,” I say. “Be my guest.”

She glances at me, and then at the god-awful picture on my license; she reads through the copy of theemancipation petition I picked up at the family court before I came here. If I am a psychotic killer, then Ihave done my homework well. But there is a part of me already giving Anna credit for being wary: this is nota child who rushes headlong into situations. If she’s thinking long and hard about going off with me,presumably she must have thought long and hard about untangling herself from the net of her family.

She hands back everything I’ve given her. “Where is everyone?” she asks.

“I don’t know. I thought you could tell me.”

Anna’s gaze slides to the front door, nervous. “I hope nothing happened to Kate.”

I tilt my head, considering this girl, who has already managed to surprise me. “Do you have time to talk?” Iask.

The zebras are the first stop in the Roger Williams Zoo. Of all the animals in the Africa section, these havealways been my favorite. I can give or take elephants; I never can find the cheetah—but the zebras captivateme. They’d be one of the few things that would fit if we were lucky enough to live in a world that’s black orwhite.

We pass blue duikers, bongos, and something called a naked mole rat that doesn’t come out of its cave. Ioften take kids to the zoo when I’m assigned to their cases. Unlike when we sit down face-to-face in thecourthouse, or even at Dunkin’ Donuts, at the zoo they are more likely to open up to me. They’ll watch thegibbons swinging around like Olympic gymnasts and just start talking about what happens at home, withouteven realizing what they are doing.

Anna, though, is older than all of the kids I’ve worked with, and less than thrilled to be here. In retrospect, Irealize this was a bad choice. I should have taken her to a mall, to a movie.

We walk through the winding trails of the zoo, Anna talking only when forced to respond. She answers mepolitely when I ask her questions about her sister’s health. She says that her mother is, indeed, the opposingattorney. She thanks me when I buy her an ice cream.

“Tell me what you like to do,” I say. “For fun.”

“Play hockey,” Anna says. “I used to be a goaltender.”

“Used to be?”

“The older you get, the less the coach forgives you if you miss a game.” She shrugs. “I don’t like letting awhole team down.”

Interesting way to put it, I think. “Do your friends still play hockey?”

“Friends?” She shakes her head. “You can’t really have anyone over to your house when your sister needs tobe resting. You don’t get invited back for sleepovers when your mom comes to pick you up at two in themorning to go to the hospital. It’s probably been a while since you’ve been in middle school, but most peoplethink freakhood is contagious.”

“So who do you talk to?”

She looks at me. “Kate,” she says. Then she asks if I have a cell phone.

I take one out of my pocketbook and watch her dial the hospital’s number by heart. “I’m looking for apatient,” Anna says to the operator. “Kate Fitzgerald?” She glances up at me. “Thanks anyway.” Punching thebuttons, she hands the phone ............