"Still waiting," she said, and wiggled her fingers to inspect the effect. Evidently it wasn't impressive enough; she added some rings, nothing too flashy, then turned her attention back to me. "Come on, Snow White, we don't have all week."

Keep your pants on, I thought at her. She must have heard it, because she raised one eyebrow in a very Spock-like gesture of amusement.

"The issue, I think, is your pants, not mine."

I slowly formed myself, inside out. Faster than before. By the time the skin came on, I was already moving on to the clothing, adding it rapidly from the templates I'd created earlier. Zip, zoom. Maybe five seconds. Not so bad.

The shoes looked good. I leaned over and admired them, decided I really needed toenail polish, and went for matching lime green.

When I looked back up, Rahel was smiling. The friendly expression disappeared as soon as I noticed it. "What?" I asked.

She shook her head, beads tinkling in her braids. "Nothing. It's just that your personal style might even be more untraditional than mine. Quite a feat, little one."

"We going to stand in a stinky alley all day talking fashion?"

"Not that we couldn't, but perhaps it isn't the best plan." She started walking toward the mouth of the long brick tunnel, where a bright New York morning flowed past in the form of anxious-looking pedestrians, none of whom looked our way. "Do try to keep up."

I clumped along after her-if one could be said to clump in shoes this fabulous. I picked my footing carefully, avoiding the puddles of God-knew-what and the shapeless heaps of God-didn't-even-want-to-know-what. Rahel reached the end of the alley, took a sharp right and fell into the traffic flow. I hurried to keep up with her long-legged strides. It really was a beautiful day; the sun caressed my skin, covered me in a sweet warm blanket of energy that I sucked in greedily. Around us, a constant symphony of honking cars, sirens, loud voices-energy to spare. You gotta love New York City. Kick the crap out of it, and it just rolls over and comes back for more. Me and the Big Apple had that in common. That and a certain brash, trashy style.

"So who's Patrick?" I asked, eventually. "Friend of yours?"

Rahel's snort was rich with disgust. "No. We don't travel in the same circles."

Wow, even in the world of the Djinn, you could be unpopular. Who knew? "So what's wrong with him?"

"Nothing. We're only very different."

"Yeah? How? He into the business casual look?"

I earned a narrow, amused look from beast gold eyes. "He thinks the best way to learn to be a Djinn is to learn to be a slave."

I missed a step. Rahel kept on walking, but slowed enough to let me catch up. "And this is the guy you're taking me to?"

"Neither of us has a choice," she pointed out. "I am bound to obey Jonathan's orders. So are you."

"Yeah, speaking of that, why?"

She shot me a wide-eyed look, and her hot amber eyes were nearly human in their surprise. "Why what?"

"Why do you obey him?"

She shook her head gently. "I do not have the time or energy to teach you all of Djinn history in a day, but Jonathan commands our loyalty for a reason. If Patrick is the place you've been directed to go, I will deliver you, and there you will stay. That ends it."

Maybe for her, but I wasn't used to taking orders without the chance to argue about it first. Still, no point in arguing with Rahel. I knew from experience that she could crush me like an ant. "So where is this guy?"

She pointed. I blinked.

"You're kidding," I said. Straight ahead, at the end of her pointing finger like she'd conjured it up out of the ground, stood the huge stone and steel tower of the Empire State Building. Well, the blurry outlines of it. We were a long walk away. "Do these look in any way like L.L. Bean hiking boots to you?"

Rahel flashed me a blinding, sharp-toothed smile. "Then put on comfortable shoes."

I sighed and fell into step with her. Some days, it just doesn't pay to have fashion sense.

New York is interesting on every level, but especially on the aetheric. In the physical world it's layered like a wedding cake, history on history; dig far enough down in those sandhog runnels and you'd find graffiti left by the original Dutch settlers, and by the long-ago-evicted Indians before them. In Oversight, New York isn't about bricks, cement, and streetlights- it's all about perceptions and energy. One enormous storage battery, stuffed with good, evil, rage, peace, fury, love, hate, and ambition. It shoots up into the aetheric for miles, a fantasyland of constantly changing illusions.

It was brighter today than it had been the last time I'd seen it, a kind of fierce pride spiking from every structure, even the tenements tainted by anger and despair.

The Twin Towers still existed, on the aetheric plane. When we came into a space where the buildings would have once been visible, I stood and gaped, feeling cold prickles all over my not-quite-human skin. The ghosts of the two buildings rose like glittering ice into the gray sky.

"How?" I stuttered, but I already knew. It was there because it lived in the hearts and minds of millions, maybe billions of people, and until that faded, it would remain in the aetheric. "Because we remember."

Rahel nodded soberly and said, "Humans have power. Creating, destroying, remembering ... all acts of great power. Greater than any of them know."

There was something humbling about it. I could sense the incredible force of power even from where I stood. "Can we go there? Take a closer look?"

"Not you," she said. "Too young. Too much power. For you, it would be like standing in the heart of a sun."

She shooed me on. We moved at the fast pace of foot traffic. This time of day, rush hour was in full swing-people striding to work, women in business suits and Air Jordans, bike messengers weaving in and out of the honking, stinking, creaking flow of traffic next to the sidewalk. Every other car was yellow, with rates on the side. Everybody seemed to have a big purse, a backpack, or a briefcase. Half of them were on cell phones.

"So I said to him ..."

". . . bitch, back up off of that before I slap you stupider than you look ..."

". . . I mean, how dumb can you be? Obviously, it's a chicken!"

I wondered if any of them realized how their personal lives sounded to the rest of the world. Or cared. I wondered if anybody had been listening to us. If they had, nobody cared. Just another day in New York, apparently.

We weren't moving as invisible, but that didn't stop people from barreling ahead into our space at frightening rates. Rahel dodged to avoid a particularly focused blond woman in an Ann Taylor jacket and a Kmart skirt. She had a cell phone headset over her bleached hair, smart-girl glasses perched at the end of her nose, and wasn't taking crap from anybody. I recognized the type. Black belt in shopping, no kids, no dogs, no husband, money market account diversified into international growth and mutual funds. Probably lived in a pricey but tiny closet on the Upper West Side and worked at Citibank or Chase.

She noticed us, and even for New York we were clearly not the usual sight. For just a second her gray eyes touched Rahel and locked on like missiles, and then she swerved and blasted past us, back to talking tensely about the latest slide of the Dow Jones. Rahel smiled. "Sometime tonight, she'll have a dream. A dream about flying, or falling, or monsters. And she won't know why."

"You did that?"

"No," she said. "They do it to themselves. We are not safe to look on for long, you know. Not for them." She glanced over at me, and frowned. "Or perhaps she'll just have a nightmare about your hair."

"What about my-" I caught sight of it, reached up and dragged a tight curl down to focus on it. "Dammit. I'm Shirley Temple again."

Rahel pulled me to a stop and over to the side, under the shelter of a red-and-white striped awning in front of a dusty shoe store. The pavement was spotted with pigeon poo and ages of tobacco stains. She stood in front of me, blocking me from bystanders, and brushed her long-nailed fingers gently over my head. I felt the curls relaxing. "There," she said. "Remember that feeling. Just reach for it when you need it." She studied me more closely. "Your eyes."

I neutralized them to the serene dove gray that I'd managed earlier. She nodded.

We waded back into foot traffic again, and had a nice twenty-minute walk. I don't recommend that in cool shoes.

At the end of what I was coming to think of as the Manhattan Death March, the big foursquare bulk of the Empire State Building loomed over us, cool shadows rich and deep with history. "Aren't we taking the tourist thing a little far?" I asked, staring up. The building was awe-inspiring in its achievement; I wanted to take a look in Oversight, but I knew that if I did I'd never get my hair and eyes straight again. Better to stick to the simple things, for now.

"Inside," Rahel said, and pushed me to the big revolving glass doors. I pushed, shuffled, and emerged into the big genteel lobby, under the steely gaze of a phalanx of security guys in snappy blue sport coats. The place smelled of fresh paint and old wood, and there was so much to see, even without resorting to Oversight or rising into the aetheric. Gorgeous deco touches, a sense of weight and history to the place that made me want to sit down and soak it in. So many people had come through here, over the years, bringing with them their fears, their loves, their hopes and dreams.

I could feel the echoes of them trapped in every tile on the floor, in every steel beam of the structure. It felt . . . deliriously weighty.

Visitors were queuing up behind a maroon velvet rope next to a sign that said tours. There was a metal detector involved, and I was sure the German shepherd sitting pretty in the corner wasn't there for his health.

"Walk through the detector," Rahel said. "Don't touch anything."

"Um, people in line-"

"Go around them."

I did. Nobody glanced my way. Now that I concentrated, I could feel something hanging around me- a kind of gray veil, a don't-see-me that wasn't quite invisibility. Rahel's doing. I was getting better at figuring that out, anyway; I couldn't even sense it before. I waited until there was a pause in people going through the detector and darted in, zipped through, and felt the weirdest sensation, a kind of burn deep inside. Whoa. Weird.

The dog was looking at me. At first I thought he was just staring in my direction, but he watched me as I walked across the lobby, and as Rahel joined me I nudged her and jerked my chin in the direction of our furry friend.

She nodded. "Animals see us as we are," she said. "Dogs don't feel threatened, but beware of cats. They can be unpleasant."

"O-kay."

She pressed the button. We waited. Eventually a likely candidate arrived, and we crowded in fast, cutting off the flow of tourists with a fast-closing door. Rahel pressed a button-which floor, I didn't see- and then turned and stared into the empty corner of the metal box.

"Um ..." I was at a loss for words, for once. "Is there something ..."

"Quiet," Rahel snapped. "I'm thinking."

I was quiet. I listened to the creak of the elevator, the hiss of cables as they hauled us up toward heaven. Distant voices dopplered past one floor at a time, snippets of conversation that wove in and out too fast to catch.

I became aware of something else. A low-level hum somewhere in the far corner of the elevator, a sound where there should be no sound. No presence.

"What's that?" I asked, but before I got more than the first word out, Rahel was moving. Spinning away from me, slamming into the empty space of the corner, grappling with something that was shadow and darkness and then . . .

And then I saw it. Definitely not human. Black, fluid, like an spilled shadow, a stain on the world. Rahel was trying to hold it, but it slid away from her like oil, oozing past her, flowing toward me.

"Go up!" she shouted to me, and her talons changed colors from neon orange-yellow-blue to diamond, and she slashed at the thing between us, tearing deeply. I heard it scream in a high, metallic, screeching voice. "Idiot! Go up!"

She meant up to the aetheric. I let go of my human form and went instantly into fog, vapor, mist . . . into nothing that could be gotten hold of. But that meant I went up into the next plane of existence, and there, the battle was really going on.

Rahel-fog and fire in the aetheric, a bright glowing ghost-was inside of a black, crackling cage of fire. As I watched, she howled and slashed at it, but the wounds she made faded within seconds.

It was ... it was eating her. Consuming her, bleeding off power, feeding it through that cage of fire and into something else, something that I couldn't even see for the darkness. God. The thing was looking at me, not at her. I could feel its hunger vibrating the world between us.

I didn't think. I just reached out and grabbed hold of that black cage of fire. I guess I intended to rip a hole in it big enough for Rahel to escape, but that wasn't what happened. The second I touched it, it bonded to me, made me a circuit in that huge flow of current. I was locked in place.

"Joanne!" Rahel shouted, and I felt her reach through the bars that separated us and touch me. "Draw on David! Fight!"

I didn't have a choice. The sensation of being sucked dry was so overwhelmingly revolting that I would have used anything, anybody to pull away. I grabbed hold of that silvery cord that connected me to David and felt power cascade into me, heady, brilliant, hot, pure. It was like introducing a circuit breaker into the flow. The cage around Rahel fell apart into writhing black spikes of energy, and I reached to pull her free. When I touched her, I left silvery contrails of power behind. She grabbed hold and dragged me down, through aetheric, rocketing back into the real world. We slammed back into the elevator cage with enough force to rock it on its cables, and Rahel didn't waste any time with niceties; she took over for me, creating flesh and form in less than a flicker of a second, and when I opened my eyes her neon yellow ones were staring into mine from less than a foot away.

"What the hell was-"

"Hold on!" she shouted, interrupting me, and I felt the power surge around us. Not from her, not from me, from that thing.

I didn't think, I reacted. I reached out and slapped it down, hard. The resulting concussion of force erupted in sparks and blue-white flashes as energy turned to electricity, seeking the ground.

Ah, this was something I could handle. I reached out on the subatomic level and quickly dispersed the field, bleeding it off into a million tiny jolts through the steel frame of the building. All over the place, people would be picking up static charges from carpet, shocking themselves on doorknobs, feeling prickles on the backs of their necks.

"No!" Rahel said, and grabbed me by the shoulders. "We can't fight here! Too close!"

Not that we had any choice. The thing was still coming at us, hard and fast, and I ignored her to reach out through the aetheric and read what was going on.

It had control of the air. I couldn't tell what it meant to do, but something bad was a good bet. Air's heavy-it weighs several pounds per square inch. Increasing density can crush a human-or even a humanoid-body like an empty beer can.

I blocked, drawing heavy oxygen out of the elevator cage and slamming it together in a tightly packed ball between my spread hands. Rahel backed away, looking down at the swirling gray-blue mass I was holding. Her eyes went wide.

I set it on fire with a spark from the electricity still crackling around in the air, and wrapped the whole thing in a shell of carbon dioxide, and lifted that bowling-ball-sized inferno in one hand and held it there. Hell in a bottle.

"Bring it on!" I yelled to the empty air. Voices didn't carry in the altered atmosphere, but it didn't matter, I knew it was getting the point. "Get your ass out here, you coward! Show yourself!"

The elevator shuddered to a halt.

Something black manifested itself in the corner as a shadow, then a stain, then an oil-slick presence.

It wasn't a Djinn. I didn't know what it was, but evidently Rahel did. She lifted her left hand and pointed it at the thing, and her fingers sprouted claws again-long, wickedly pointed things that gleamed harsh crystal in the overhead lights.

"Ifrit," she hissed. She looked savage. "Leave this place."

There were eyes in the shadows; I could feel them even if I couldn't see them. Dark eyes. And a darker amusement. The ball of fire I'd made was starting to get hot, even through the layering I'd put around it. I tossed it from one hand to the other, looking casual and-I hoped-deadly.

The Ifrit purred, "Peace to you, my sisters."

"War, my sister," Rahel answered softly. "Who lets you hunt here?"

"Sweetmeat, I hunt where I choose," the thing said. It had a voice like darkest velvet, and even though the air was too thin to hold a smell I could taste it, like rotting meat in the back of my throat.

"Not here. Not now."

I don't know how it did it, but it smiled. Grinned, actually. Maybe it was just that my eyes were getting accustomed to the lack of features in its face, and added some imaginary ones, but I thought I saw a flash of teeth. "This creature cannot survive," it said, and pointed toward me. "Think you I will allow its energy to be wasted?"

The Ifrit was talking about me. "Who you calling a creature?" I shot back.

"Hush," Rahel said absently. She was staring at the Ifrit with a frown now, no longer afraid. "Get rid of that fireball before you hurt someone."

Oh. The fireball. I killed it by the simple expedient of cracking the carbon dioxide shell and instantly supercooling the molecules as they tried to hurtle out and fry us alive. By the time the snapping sound echoed through the elevator car, all that was left was a faint smell of ozone and a wisp of smoke that I left, just for effect.

"Now," Rahel said, and slowly lowered her hand. "Who sent you, my poor sister?" I wondered what had made the attitude change. My poor sister? The thing didn't look either poor or related. Or even vaguely female.

Right on cue, the elevator dinged and the cage shuddered to a stop. The doors slowly creaked open on a spacious but faded hallway, an expanse of not very new business-class carpet . . . and Santa Claus.

Really. Big, burly, tall, with thick bushy white-blond hair, twinkling Caribbean blue eyes . . . He was wearing a blue velour jogging suit, Nike cross-trainers, and little narrow Claus-friendly glasses perched on the end of his nose.

"Actually, she's mine. Sorry for the inconvenience," he said. He stuck his hand out sideways for me to shake. I stared at it, at him, at Rahel, at the Ifrit who was now lounging against the elevator wall as if it didn't have a care in the world. The air still smelled of fear and ozone.

"Joanne Baldwin, I presume," he said, with that same devil-in-the-details smile.