I left my house the first day of my senior year thinking I had everything under control. Fillmore High, better known as Feel-Me-More High, wasn't a complicated place to navigate. I'd spent the last few years observing my classmates with a kind of hungry curiosity, so the social network wasn't difficult to steer through. The plan for this year was to get decent grades, keep my head down, and stay out of trouble. I didn't like my life in the shadows, but lives depended on me staying as invisible as I could.

The problem was, my mom stopped at the main entrance of my school rather than the side entrance like she'd promised, and we were in her candy-apple-red Porsche Carrera. Several kids had gathered in groups on the lawn. They all turned to see who would get out of such an obnoxiously expensive car in front of a run-down public school in a sketchy part of town. It was a valid question. I'd attended a nicer school closer to our house until my sophomore year, when I'd begged my parents to transfer me out of district. I'd wanted a new start where no one knew me. To be honest, I'd come to like the crumbling monstrosity that was Fillmore High School. People tended to mind their own business and there was a certain charm to the old architecture in the area.

Cursing my luck and my adoptive mom's insistence that I be chauffeured around like a twelve-year-old, I grabbed my backpack to get out. Mom gripped my arm, stopping me. "I've got to teach a yoga class this afternoon," she said. "You can catch the bus to work, right?"

I rolled my eyes. "Why didn't you just let me drive myself? I have my own car. I'm ridiculously responsible. I even pay for my own car insurance."

Mom patted my knee. "Don't be mad, Alison," she said, looking reminiscent. "I wanted to drive you one last time."

She could be aggravating, but then, I'd heard most parents could be. A ride to school on the first day was a family tradition, and not much topped tradition when it came to my mom. Catching the bus to work would be a major pain, but it was impossible to stay angry with her. I smiled. "Sure," I said. "I'll manage somehow."

As she pulled away in her flashy car, the stares of a least ten kids zoomed in on me. I formed a thought—The flag is on fire—and pushed it into their minds. Expressions of shock and astonishment crossed their faces and their heads turned quickly toward the flagpole in front of the school.

I sighed in relief. The results of my thought transference were mixed. Sometimes it worked like a charm; other times I had a hard time making it stick. Fortunately, it worked this time, and no one gave a crap about me as I continued on.

I switched my backpack to the other shoulder while the sun's heat beat down on my back like a death ray. It was seven thirty in the morning and already eighty-five degrees. That's how August in Las Vegas was. You accepted it after a while, but you never got used to it.

I opened the heavy glass doors at the front of the school, and a gush of cool air hit me. Fillmore might be a crumbling pile of bricks, but the air-conditioning was top-notch. It had to be, or the student body would die of heatstroke. Several people watched me come in, so I kept my expression bland, and their eyes glazed over with a lack of interest.

Dressed in my usual camouflage—jeans and a nondescript T-shirt—I wasn't much to look at. I wore thick-rimmed glasses and no makeup. I also pulled my dark hair into a bun at the back of my neck, which added greatly to the blah factor. I'd designed my style to look like paint on the wall—there but rarely noticed.

Putting my earphones in, I turned up the volume on my iPod and stepped into the crowd. The place reeked of cheap cologne, drenched on the boys with reckless abandon. People were wearing their best, which in Vegas was usually a new pair of shorts and an overpriced T-shirt. Everyone was trying to impress but appear casual at the same time. Not many managed it. I watched the smiles and conversations around me, feeling the familiar bubblings of envy.

I didn't have friends at Fillmore High, not a single one. I wasn't friendless in the sense that I couldn't make them. I practiced good personal hygiene and could carry a conversation. I'd been a sociable and outgoing girl once, but that version of me had gone into storage years ago. I kept things as impersonal as possible now.

I pushed and dodged my way through groups of talking kids until things started to thin out around the north hall. Only a few people had gathered there, and most of them stood alone, working the dials on their lockers.

Skirting around a janitor wielding a mop and bucket, I tried not to gag on the pungent odor of industrial cleaning supplies. The north hall always smelled funny because it was home to maintenance and supply closets. It was long and dark, too, giving it a creepy feel. It wasn't anyone's first choice for a locker assignment. Except for me. I'd wanted one there because the majority of the metal boxes around it would stay empty for the year.

I found my locker and flipped the dial back and forth. I didn't need a written reminder of the alpha sequences ... or anything else, for that matter. One of the benefits of being like me was perfect recall. Since my eighth birthday, everything I'd seen or heard had been stored away in a neat filing system in my brain. The lock clicked under my fingers, and I stacked some notebooks on the bottom shelf. Then I stuck a mirror and a picture of my dog to the inside of the door. The result wasn't homey, but it appeared occupied and that was good enough for me. I would open it a couple of times each day, but I would never leave anything I actually used inside it. One of the rules I lived by was keeping my personal things with me at all times.

Halfway down the stairs to my first class, a gangly boy and a girl who was round in all the right places were putting the Feel-Me-More back into Fillmore High. It was impossible to get around them, so I cleared my throat loudly. When they didn't look up, I tapped the boy on the shoulder. He mumbled something like "Go away" but didn't shift. I focused and then sent "Move" into both of their minds.

The girl backed against the wall and the boy quickly shifted to resume his Velcro stance against her. I squeezed by them.

I faded into the darkness below with a big smile on my face.

I was the first to arrive for AP English. The room was typical of most in the building, boxlike, bars on the windows, and white walls with brown carpet on the floor and up the kickboard. The only thing missing was a straitjacket.

The desks had been arranged to form a tight semicircle at the front of the room. I was going to have a neighbor on at least one side no matter where I sat, so I chose the chair farthest from the door. Unzipping my backpack, I got out the supplies I would need. I'd turned getting ready for class into an art form. I could stretch getting my stuff organized on my desk out for two minutes. Those who lived in the shadows learned to look busy even when we weren't. As usual, I kept my head down while the class filled up fast around me. When a warm body slid into the chair next to mine, I looked through my lashes to see who it was.

Connor McKenzie was cute and always dressed to perfection. He even ironed his shorts. He was also notoriously talkative. Opening my notebook, I began doodling, hoping he'd see the illusion I worked to create ... a silent...