Finding people is hard, especially when they don't want to be found. It's so difficult, in fact, that estimates run up near seven-digit figures on how many people disappear, without a trace, every year in the United States. Most of these people aren't ever found.

I didn't want Lydia to become one of these statistics. Either she was one of the bad guys and had been playing me for a sucker, or she was a victim who was in need of my help. If the former, then I wanted to confront her - I have this thing about people who lie to me and try to get me into trouble. If the latter, then I was probably the only one in Chicago who could help her. She could be possessed by one very big and very brawny spirit who needed to get some, pardon the pun, exorcise.

Lydia had been on foot when she left Father Forthill, and I don't think she'd had much cash. Assuming she hadn't come into any more resources, she'd likely still be in the Bucktown/Wicker Park area, so I headed the Blue Beetle that way. The Beetle isn't really blue any more. Both doors had to be replaced when they'd gotten clawed to shreds, and the hood had been slagged, with a big old hole melted in it. My mechanic, Mike, who can keep the Beetle running most days, hadn't asked any questions. He'd just replaced the parts with pieces of other Volkswagens, so that the Blue Beetle was technically blue, red, white, and green. But my appellation stuck.

I tried to keep my cool as I drove, at least as best as I could. My wizard's propensity for blowing out any kind of advanced technology seems to get worse when I'm upset, angry, or afraid. Don't ask me why. So I did my best to Zen out until I got to my destination - parking strips alongside Wicker Park.

A brisk breeze made my duster flap as I got out. On one side of the street, tall town houses and a pair of apartment buildings gleamed as the sun began to go down over the western plains. The shadows of the trees in Wicker Park, meanwhile, stretched out like black fingers creeping toward my throat. Thank God my subconscious isn't too symbolically aware or anything. The park had a bunch of people in it, young people, mothers with kids, while on the streets, business types began arriving in their business clothes, heading for one of the posh restaurants, pubs, or cafes that littered the area.

I got a lump of chalk and a tuning fork out of my exorcism bag. I glanced around, then squatted down on the sidewalk and drew a circle around myself, willing it closed as the chalk marks met themselves on the concrete. I felt a sensation, a crackling tension, as the circle closed, encasing the local magical energies, compressing them, stirring them.

Most magic isn't quick and dirty. The kind of stunts you can pull off when some nasty thing is about to jump up in your face are called evocations. They're fairly limited in what they can do, and difficult to master. I only had a couple of evocations that I could do very well, and most of the time I needed the help of artificial foci, such as my blasting rod or one of my other enchanted doodads, to make sure that I don't lose control of the spell and blow up myself along with the slobbering monster.

Most magic is a lot of concentration and hard work. That's where I was really good - thaumaturgy. Thaumaturgy is traditional magic, all about drawing symbolic links between items or people and then investing energy to get the effect that you want. You can do a lot with thaumaturgy, provided you have enough time to plan things out, and more time to prepare a ritual, the symbolic objects, and the magical circle.

I've yet to meet a slobbering monster polite enough to wait for me to finish.

I slipped my shield bracelet off of my wrist and laid it in the center of the circle - that was my channel. The talisman I'd passed off to Lydia had been constructed in a very similar manner, and the two bracelets would resonate on the same pitches. I took the tuning fork and laid it down beside the bracelet, with the two ends of the shield bracelet touching either tine, making a complete circle.

Then I closed my eyes, and drew upon the energy gathered in the circle. I brought it into me, molded it, shaped it into the effect I was looking for with my thoughts, fiercely picturing the talisman I'd given Lydia while I did. The energy built and built, a buzzing in my ears, a prickling along the back of my neck. When I was ready, I spread my hands over the two objects, opened my eyes and said, firmly, "Duo et unum." At the words, the energy poured out of me in a rush that left me a little light-headed. There were no sparks, no glowing luminescence or anything else that would cost a special effects budget some money - just a sense of completion, and a tiny, almost inaudible hum.

I picked up the bracelet and put it back on, then took up the tuning fork and smudged the circle with my foot, willing it broken. I felt the little pop of the residual energies being released, and I rose up and fetched my exorcism bag from the Beetle. Then I walked away, down the sidewalk, holding my tuning fork out in front of me. After I'd taken several paces away, I turned in a slow circle.

The fork remained silent until I'd turned almost all the way around - then it abruptly shivered in my hand, and emitted a crystalline tone when I had it facing vaguely northwest. I looked up and sighted along the tines of the fork, then walked a dozen paces farther and triangulated as best I could. The direction change on the way the fork faced when it toned the second time was appreciable, even without any kind of instruments - Lydia must have been fairly close.

"Yes," I said, and started off at a brisk walk, sweeping the tuning fork back and forth, setting my feet in the direction that it chimed. I kept on like that to the far side of the park, where the tuning fork pointed directly at a building that had once been some kind of manufacturing facility, perhaps, but now stood abandoned.

The lower floor was dominated by a pair of garage doors and a boarded-up front door. On the lower two floors, most of the windows had been boarded up. On the third floor, truly bored or determined vandals had pitched stones through those windows, and their shattered edges stood sharp and dusty against the blackness behind them, like dirty ice.

I took two more readings, from fifty feet on either side of the first. All pointed directly to the building. It glowered down at me, silent and spooky.

I shivered.

I would be smart to call Michael. Maybe even Murphy. I could get to a phone, try to get in touch with them. It wouldn't take them long to get here.

Of course, it would be after sundown. The Nightmare, if it was inside Lydia, would be free to leave her then, to roam abroad. If I could get to her, exorcise this thing now, I could end the spree of destruction it was on.

If, if, if. I had a lot of ifs. But I didn't have much time. The sun was swiftly vanishing. I reached inside my duster and got out my blasting rod, transferring my exorcism bag to the same hand as the tuning fork. Then I headed across the street, to the garage doors of the building. I tested one, and to my surprise it rolled upwards. I glanced left and right, then slipped inside into the darkness, shutting the door behind me.

It took a moment for my eyes to adjust. The room was lit only by the fading light that slipped its fingers beneath the plyboard over the windows, the edges of the garage doors. It was a loading dock that encompassed almost the entire first floor, I judged. Stone pillars held the place up. Water dripped somewhere, from a broken pipe, and there were pools of it everywhere on the floor.

A brand-new side-panel van, its engine still ticking, cooling off, stood parked at the far side of the loading dock, next to a five-foot-high stone abutment, where trucks would once have backed up to load and unload goods. A sign hanging by one hinge, over the van, read SUMMER'S TEXTILES MFG.

I approached the van slowly, my blasting rod held loosely at my side. I swept the tuning fork, and my eyes, around the shadowed chamber. The fork hummed every time it swept past the van.

The white van all but glowed in the half-light. Its windows had been tinted, and I couldn't see inside of them, even when I came within ten feet or so.

Something, some sound or other cue that I hadn't quite caught on the conscious level made the hair on the back of my neck prickle up. I spun to face the darkness behind me, the tip of my blasting rod rising up, my bruised fingers wrapped tight around its haft. I focused my senses on the darkness, and listened, honing my attention to the area around me.

Darkness.

Drip of water.

Creak of building, above me.

Nothing.

I put the tuning fork in my duster pocket. Then I turned back to the van, closed the distance quickly, and hauled open the side door, leveling my rod on the inside.

A blanket-wrapped bundle, approximately Lydia-sized, lay inside the van. One pale hand lay limp outside of it, my talisman, scorched-looking and bloodstained, wrapped around the slender wrist.

My heart leapt into my throat. "Lydia?" I asked. I reached out and touched her wrist. Felt the dull, slow throb of pulse. I let out a breath of relief, pulled the blankets from her pale face. Her eyes were open, staring, the pupils dilated until there was barely any color left in them at all. I waved my hand in front of her eyes and said again, "Lydia." She didn't respond. Drugged, I thought.

What the hell was she doing here? Laying in a van, covered up in blankets drugged and placed as neatly as could be. It didn't make sense, unless she was ...

Unless she was a distraction. The bait for a trap.

I turned, but before I got halfway around that cold energy I'd felt the night before flooded over the side of my face, my throat. Something blonde and incredibly swift slammed into me with the force of a rushing bull, throwing me off my feet and into the van. I spun around onto my elbows to see the vampire Kyle Hamilton coming for me, his eyes black and empty, his face screwed up into a grimace of hunger. He still wore his tennis whites. I kicked at his chest, and superhuman strength or no, it lifted him up off the ground for a second, brought me a half-breath of life. I lifted my right hand, the silver ring there gleaming, and cried, "Assantius!"

The energy stored in the ring, all kinetic stuff that it saved back a little every time I moved my arm, unloaded in a flood, right in the vampire's face, an unseen fury of motion. The raw force split his lips - but no blood flowed out. It dug into the corners of his eyes and tore the skin away, but there was still no blood. It ripped the skin from his cheekbones, all rubbery black beneath the Anglo-Saxon pink, strips of flesh flapping back in the wave of force like flags in a high wind.

The vampire's body flew back and up. It thudded hard against the ceiling and then fell to the floor with a thump. I struggled out of the van, my chest aching with a dull sort of pain. I left the doctor's bag behind, shook out the shield bracelet and extended my left arm in front of me.

Kyle stirred for a moment and then flung himself to all fours, his body weirdly contorted, shoulders standing up too much, his back bent at a crooked angle. Shreds of flesh dangled from his face, slick-looking, rubbery black beneath them. His eyes also had the skin torn away from them, like pieces of a rubber mask, and bulged out black and huge and inhuman. His jaws parted, showing dripping fangs, saliva pattering to the damp floor.

"You," the vampire hissed, his voice calm, normal, disconcerting.

"Whoah, that was original," I muttered, drawing in my will. "Yeah, me. What the hell are you doing here? Where do you think you're going with Lydia?"

His inhuman expression flickered. "Who?"

My chest panged, hard, sharp, hot, as if something was broken. Broken badly. I remained standing, though, not letting him see weakness. "Lydia. Bad dye job, sunken eyes, in your van, wearing my talisman on her wrist."

He hissed out a dripping runnel of laughter. "Is that what she told you her name was? You've been used, Dresden."

I got a shivery feeling again, and narrowed my eyes. I didn't have any warning but instinct to make me throw myself to one side in an abrupt leap.

The vampire's sister, Kelly, as blonde and pretty as he had been a moment before, landed in the space I had occupied. She too dropped to her knees with a drooling hiss, fangs showing, eyes bulging. She wore a white cat suit, clinging tight to her curves, along with white boots and gloves, and a short white cape with a deep hood. Her clothing was smudged, imperfect, spotted with flecks of scarlet, and her blonde hair in disarray. Blood stained her mouth, like smeared lipstick, or a child with a big cup of juice. A blood mustache. Hells bells.

I kept my blasting rod trained on Kelly, my left hand thrust out before me. "So you two are putting the snatch on Lydia, eh? Why?"

"Let me kill him," moaned the female, her eyes all black, empty and hungry. "Kyle. I'm hungry."

So sue me, I weird out when someone starts talking about eating me. I swung the blasting rod right at Kelly's face and started sending power into it, setting the tip to glowing. "Yeah, Kyle," I said. "Let her try."

Kyle rippled, beneath his skin, and it was enough to make my stomach turn. Something like that just ain't right, even when you know what's underneath. "This affair is none of yours, wizard."

"The girl is under my protection," I said. "You two clear out, now, and I won't have to get rough with you."

"That will not happen," Kyle said, his voice deadly quiet.

"Kyle," the female moaned again. More drool slithered out of her mouth, dripping to the floor. She started shaking, quivering, as if she were about to fly apart. Or at me. My mouth went dry, and I got ready to blast her.

I saw Kyle move out of the corner of my eye. I lifted the shield bracelet toward him, transferred my will to it, but in time only to partially deflect the broken chip of concrete that he threw at my head. It slammed against my temple and sent me spinning. I saw Kelly blur toward me, white cape flying, and I lifted the blasting rod toward her, shouting, "Fuego!"

Fire slammed out the end of the rod, missing Kelly by at least a foot, but still hot enough to set the hem of her cloak ablaze. The flame slewed in an arch across the ceiling and down the wall as I started falling, cutting through wood and brick and stone like an enormous arc-welder.

She flung herself atop me, straddling my hips with her thighs, moaning in excitement. I thrust the blasting rod toward her, but she batted it aside, laughing in a wild, hysterical tone, throwing her smoldering cloak off with the other hand. She plunged toward my throat, but I lifted my hands to catch at her mane of hair. I knew it was a futile gesture - she was just too damned strong. I wouldn't be able to hold her off of me for long, a few seconds at most. My heart pounded in my burning chest, and I struggled, gasping in air.

And then droplets of her spittle fell onto my throat, my cheek, into my mouth. And none of it mattered any more.

It was a glorious sensation, that spread over me - warmth, security, peace. Ecstasy began at my skin and spread through me, easing all the horrid tension from my muscles. My fingers slackened in Kelly's lovely hair, and she purred, her hips writhing against mine. She lowered her mouth toward me, and I felt her breath on my skin, her breasts press against me through the thin material of her bodysuit.

Something, some nagging thought, bothered me for a moment. Perhaps it was something about the perfect, lightless depths of her eyes, or the way her fangs rubbed against my throat - no matter how good it felt. But then I felt her lips on my skin, felt her draw in her breath in shivering anticipation, and it stopped mattering. I just wanted more.

Then there was a roaring sound, and I dimly perceived the west wall of the building collapsing, falling away in great, flaming sections of wood and brick. The blast I had sent spewing at Kelly had sliced through the ceiling, walls, and support beams. It must have weakened the structure of the entire building as it had.

Oops.

Sunlight flooded in, through the falling bricks and clouds of dust, the last rays of daylight, warm and golden on my face, painfully bright in my eyes.

Kelly screamed and, wherever her skin wasn't covered by cloth, from her chin up, mostly - she burst into flame. The light hit her like a physical blow, hurling her away from me. I became aware of a dull pain, uncomfortable heat on my cheek, my throat, where her saliva had coated my skin.

Everything was light and heat and pain for a few moments, and someone was screaming. I struggled up a moment later, peering around the inside of the building. Fire spread, a dull chewing sound on the floors above me, and through the missing section of wall I could hear sirens in the distance. There were smears of something black and greasy on the concrete floor, leading to the white van. The sunlight barely touched the back window of the vehicle. The side door stood wide open, and Kyle, his face still hanging in ragged strips, hauled something grotesque - his sister, her true form no longer shrouded by its mask of flesh. The vampire girl made keening sounds of agony while her brother pitched her into the back of the van. He slammed the door shut, a snarl rippling his split lips. He took a step toward me, then clenched his jaws in frustration, stopping just short of the sunlight.

"Wizard," he hissed. "You'll pay. I'll make you pay for this." Then he spun back to the van, with its dark-tinted windows, and leapt in. A moment later, the engine roared to life, and the van sped toward the garage doors, plowed through one of them, sending shards of wood flying, jounced into the street, and vanished from sight, engine racing.

I remained in place, stunned, burnt, hurting, my brain clouded. Then I stumbled to my feet, and staggered toward the hole in the wall, and out into the fading daylight. Sirens got closer.

"Damn," I mumbled, looking back at the spreading fires. "I'm kinda hard on buildings."

I shook my head, trying to clear my thoughts. Dark. It was getting dark. Had to get home. Vampires could come out after dark. Home, I thought. Home.

I started stumbling back toward the Beetle.

Behind me, as I did, the sun sank beneath the horizon - freeing all the things that go bump in the night to come out and play.