Chapter One

Anna

When I was little, the great mystery to me wasnt how babies were made, but why. The mechanics I understood - my older brother Jesse had filled me in - although at the time I was sure hed heard half of it wrong. Other kids my age were busy looking up the words penis and vagina in the classroom dictionary when the teacher had her back turned, but I paid attention to different details. Like why some mothers only had one child, while other families seemed to multiply before your eyes. Or how the new girl in school, Sedona, told anyone whod listen that she was named for the place where her parents were vacationing when they made her (＂Good thing they werent staying in Jersey City,＂ my father used to say).

Now that I am thirteen, these distinctions are only more complicated: the eighth-grader who dropped out of school because she got into trouble; a neighbor who got herself pregnant in the hopes it would keep her husband from filing for divorce. Im telling you, if aliens landed on earth today and took a good hard look at why babies get born, theyd conclude that most people have children by accident, or because they drink too much on a certain night, or because birth control isnt one hundred percent, or for a thousand other reasons that really arent very flattering.

On the other hand, I was born for a very specific purpose. I wasnt the result of a cheap bottle of wine or a full moon or the heat of the moment. I was born because a scientist managed to hook up my mothers eggs and my fathers sperm to create a specific combination of precious genetic material. In fact, when Jesse told me how babies get made and I, the great disbeliever, decided to ask my parents the truth, I got more than I bargained for. They sat me down and told me all the usual stuff, of course - but they also explained that they chose little embryonic me, specifically, because I could save my sister, Kate. ＂We loved you even more,＂ my mother made sure to say, ＂because we knew what exactly we were getting.＂

It made me wonder, though, what would have happened if Kate had been healthy. Chances are, Id still be floating up in Heaven or wherever, waiting to be attached to a body to spend some time on Earth. Certainly I would not be part of this family. See, unlike the rest of the free world, I didnt get here by accident. And if your parents have you for a reason, then that reason better exist. Because once its gone, so are you.

Pawnshops may be full of junk, but theyre also a breeding ground for stories, if you ask me, not that you did. What happened to make a person trade in the Never Before Worn Diamond Solitaire? Who needed money so badly theyd sell a teddy bear missing an eye? As I walk up to the counter, I wonder if someone will look at the locket Im about to give up, and ask these same questions.

The man at the cash register has a nose the shape of a turnip, and eyes sunk so deep I cant imagine how he sees well enough to go about his business. ＂Need something?＂ he asks.

Its all I can do to not turn around and walk out the door, pretend Ive come in by mistake. The only thing that keeps me steady is knowing I am not the first person to stand in front of this counter holding the one item in the world I never thought Id part with.

＂I have something to sell,＂ I tell him.

＂Am I supposed to guess what it is?＂

＂Oh.＂ Swallowing, I pull the locket out of the pocket of my jeans. The heart falls on the glass counter in a pool of its own chain. ＂Its fourteen-karat gold,＂ I pitch. ＂Hardly ever worn.＂ This is a lie; until this morning, I havent taken it off in seven years. My father gave it to me when I was six after the bone marrow harvest, because he said anyone who was giving her sister such a major present deserved one of her own. Seeing it there, on the counter, my neck feels shivery and naked.