She always knows more than she’s willing to tell me. She says too much knowledge makes what we can do excessively tempting and that she only trusts herself because of years of resisting as she researches. I’m not even sure what that means. I guess we might be tempted to change the future, but she talks like there’s more.

And I desperately want to know what that more is.

I don’t think it’s fair. I can’t really believe any other sources; they’re legends at best. But Sierra’s library is the real deal. Ancient books and manuscripts that don’t exist anywhere else in the whole world. I keep trying to sneak glances at them, but Sierra’s not stupid—she notices. That’s why she does most of her errands when I’m at school.

And if I am home, the door is always locked when she leaves.

I try not to resent it. After all, she’s devoted so much of her life to me. She taught me everything she knows about fighting foretellings, and she’s always patient. I’ve actually never seen her lose her tempter.

But all those books . . . She says she’ll let me read more when I’m a member of the Sisters of Delphi. Like her.

Sierra is an author of several texts about Greek mythology and the unseen world. That’s what she does to pay the bills. And while her books are probably really great—I can barely understand the few paragraphs I’ve read, but she wins awards all the time—it’s just camouflage for her real job: the historian of the Sisters of Delphi.

The Sisters is an ancient organization of Oracles that basically monitors all of the Oracles in the world. All twenty or so of us. Sierra won’t tell me much about them. Which seems weird to me since there are so few of us. Shouldn’t we all share our information? But Sierra says that when I’m eighteen and it’s time to join them, I’ll be ready to know more.

Always the promise of more. But not now. Drives me crazy.

I knock softly on Sierra’s door. She must be home; her door is not only unlocked, but open an inch or two.

“Come in.”

Sierra’s work space is bright and inviting. The curtains are pulled back, letting in the sunshine, and there are two tall, standing lights flanking each side of her desk, which are on as well. The surface of her desk is jumbled and full of stacks of papers and books and about six coffee mugs, but there’s no dust, and certainly no darkness.

Darkness is our enemy.

Sierra doesn’t even look up until I’ve been standing beside her chair for what feels like a very long time. “Charlotte,” she finally says, pushing wisps of hair away from her face with a smile. Her hair is a shiny brown—just like mine and mom’s. At least it is now.

I remember when it was strawberry blonde, when she curled the edges and it danced around her face. Now she dyes it. I don’t know why anyone would opt for brown over that gorgeous strawberry. But when I asked her about it a few years ago, she looked so sad I’ve never asked again.

That was back when she always looked pretty and dressed up. Not anymore. No makeup, no fancy hairstyles. A single ponytail, a braid down her back, sometimes a bun. I glitz myself up more than Sierra does, and that’s saying something.

She’s staring at me, eyebrows raised, waiting for me to speak, and my mind vacillates. Confess or keep quiet? I honestly don’t know what the best thing to do is. I’d like advice, but I feel like a kid again, confessing that I wasn’t able to block a vision. Despite the fact that Sierra and I are close, she’s still my mentor, and she expects a lot of me.

“When was the last time you saw a vision?” I finally blurt out.

That gets her full attention. She slides her reading glasses up onto her forehead and pushes her office chair back. “The last time I fought a vision or the last time a vision won?” she asks softly.

“Both,” I say after a moment of hesitation.

She waves her fingers in the air almost dismissively. “I fought one this morning. It was small. No big deal.” She removes her glasses now and sticks the end of one earpiece in her mouth, her teeth worrying the plastic with audible clicks. “The last time a vision beat me was ten years ago,” she whispers as though confessing a crime.

“Ten years?” I echo in the same hallowed whisper. And I thought I was doing well going on almost six months.

“It gets easier,” Sierra says, reaching out for my hand. “You’ll grow stronger.”

I nod, though my throat feels tight now and I can’t actually speak.

“Hard one today?” Sierra asks, and her thumb makes circles on my hand.

I look at her and I know she can see the answer in my eyes. I always come in to see her on tough, draining days when blocking a foretelling takes everything out of me. Some days we don’t even talk; I simply sit and share the same space with the only person in my life who understands the struggle I face every day.

She hesitates and I’m afraid she’s going to ask if I won my fight or not. I don’t know how I’ll answer her. “Your teens are the hardest time,” she finally says, her thumb still stroking the back of my hand. “Life is so full of things to pull your attention away from your defenses, your body is still changing, hormones are raging.”

Oh yes, please talk about puberty right now, I think, forcing myself not to roll my eyes. I do pull my hand back though, and cross my arms over my chest.

At least she didn’t ask. She usually assumes I won. Because I almost always do. Maybe she trusts that I would tell her if I didn’t. And she should be able to. More guilt.