“Well, Mackenzie,” says Gavin, emphasizing each of the three syllables evenly, just the way Ben did, “welcome to Hyde.”

“Mackenzie, will you help me?”

We’re sitting at the table, Ben and I, while Mom hums in the background, making dinner. I’m twirling my silver ring and reading a passage for my freshman English class, and Ben’s trying to do his fourth-grade math, but it’s not his best subject.

“Mackenzie…?”

I’ve always loved the way Ben says my name.

He was never one of those kids who couldn’t speak, who skipped syllables and squeezed words down into sounds. By the time he was four, he prided himself on pronouncing everything. Mom was never Mama, Dad was never Daddy, Da was never Da but Da Antony, and I was never Muh-ken-zee or Mc-kin-zee, and certainly not Kenzie, but always Mah-Ken-Zee, the three beats set like stones in order.

“Will you show me how to do this problem?”

At nine, even his questions are precise. He has this obsession with being a grown-up; not just wearing one of Dad’s ties or holding his knife and fork like Mom, but putting on airs, mimicking posture and attitude and articulation. He has the makings of a Keeper, really. Da didn’t live long enough to see him taking shape, but I can see it.

I know I already took Da’s spot, but I often wonder if the Archive could make a place for Ben, too.

It’s a selfish wish, I know. Some might even call it a wrong wish. I should want to protect him from everything, including—no, especially—the Archive. But as I sit there, turning my silver ring and watching Ben work, I think I might give anything to have him beside me.

I get why Da did it. Why he chose me. I get why everyone chooses someone. It’s not just so that someone takes their place. It’s so that—at least for a little while—they don’t have to be alone. Alone with what they do and who they are. Alone with all those secrets.

It is selfish and it is wrong and it is human, and as I sit there, watching Ben work, I think that I would do it. I would choose him. I would take my little brother with me. If they’d let me.

Of course, I never find out.

In truth, Gavin looks very little like Ben. I know because I’ve been staring at him—and then trying not to stare—for the last fifteen minutes. Luckily, between a long shower and the walk with Wes, fifteen minutes is all I have before the bell rings.

It turns out that even though we’re a grade apart, Amber and I have Physiology together. She tells me on the way how it’s all part of her pre-premed plan, how her grandmother was some incredible war surgeon behind the blood-slicked camp curtains, and how she has steady hands just like her. Between the Court and the science hall—marked by a statue of a snake—I discover my favorite thing about Amber Kinney.

She likes to talk.

She likes to talk even more than Lyndsey, and as far as I can tell it’s not out of a need to fill the quiet so much as a simple lack of filter between her brain and mouth—which is fine with me, because she’s surprisingly interesting. She tells me random facts about the school, and then about each member of the Court: Gavin won’t eat anything green and has a brother who sleepwalks; Cash speaks four languages and tears up at sappy commercials; Safia—because apparently Amber is actually friends with her—used to be so shy she barely spoke, and still hasn’t quite figured out how to speak nicely; Wesley is a sarcastic flirt and allergic to eggplant and…

Amber trails off. “But you already know Wesley,” she says.

“Not as well as you’d think,” I say carefully.

Amber smiles. “Join the club. I’ve known Wes for years, and there are times I still don’t feel like I know him. But I think he likes it that way—an air of mystery—so we all let him have his secrets.”

I wish everybody felt the way Amber Kinney does about secrets. My life would be a lot easier.

“So,” I say, “Wesley’s a flirt?”

Amber rolls her eyes and holds the door open for me. “Let’s just say that air of mystery tends to work in his favor.” I feel the heat creeping into my face as she glances my way. “Don’t tell me you’ve already fallen for it.”

I chuckle. “Hardly.” And that much is true. After all, it’s not Wesley’s secrets that make my pulse climb. It’s the fact that we have the same ones. Or, at least, most of the same ones. I can’t help but wonder, after the shock of seeing him here, what else I don’t know.

His voice echoes in my head: You didn’t ask.

We reach the Physiology room and snag two seats side by side as the bell rings. A surprisingly young woman named Ms. Hill walks us through our syllabus, and I spend the next few minutes flipping through the textbook, trying to figure out which bones Owen snapped inside my wrist. It’s funny—looking at the maps of bone and muscle and nerve, the diagrams of body flexion and movement and potential—how much of this I’ve learned already. More through trial and error and application than assigned reading, but it’s still nice to find that some of the knowledge translates. I run my fingertips lightly over the illustrated fingers on the page.

I make it through the lecture, and Amber points me in the direction of my last class: Government. It’s taught by Mr. Lowell, a man in his fifties with a mop of graying curls and a soft, even voice. I’m prepared to have to stab myself with my pen to stay awake, but then he starts talking.

“Everything that rises will fall,” he says. “Empires, societies, governments. None of them lasts forever. Why? Because even though they are the products of change, they become resistant to change. The longer a society survives, the more it clings to its power, and the more it resists progress. The more it resists progress—resists change—the more its citizens demand it. In response, the society tightens its grip, desperate to maintain control. It’s afraid of losing its hold.”

I stiffen in my seat.

Do you know why the Archive has so many rules, Miss Bishop? Owen asked me on the roof that day. It’s because they’re afraid of us. Terrified.

“Societies are afraid of their citizens,” echoes Mr. Lowell. “The more a society tightens its grip, the more the people fight that grip.” He draws a circle in the air with his index finger, going around and around, and each time he does, the circle gets smaller. “Tighter and tighter, and the resistance grows and grows until it spills over into action. That action takes one of two forms.”

He writes two words on the board: REVOLUTION and REFORM.

“The first segment of this class,” says Mr. Lowell, “will be dedicated to the language of revolution; the second segment will be dedicated to the language of reform.” He erases the word REFORM from the board.

“You’ve all heard the language of revolution. The rhetoric. For instance, a government can be called corrupt.” He writes the word corrupt on the board. “Give me some other words.”

“The government is rotten,” says a girl at the front of the class.

“The company is abusing power,” says a boy.

“The system is broken,” adds another.

“Very good, very good,” says Mr. Lowell. “Keep going.”

I cringe as Owen’s voice echoes in my head. The Archive is a prison.

“A prison,” I say, my voice carrying over the others before I even realize I’ve spoken out loud. The room quiets as the teacher considers me. Finally he nods.

“Rhetoric of imprisonment and, conversely, the call for freedom. One of the most classic examples of revolutionary thought. Well done, Miss…”

“Bishop.”

He nods again and turns his attention back to the class. “Anyone else?”

By the time school lets out, my edges are starting to fray.