Definitely getting a headache. It was going to be a long night.

Chapter Fourteen

Elidee led Billy and me through alleys, up a fire escape to the roof of a building and then down on the other side, and through a junk-cluttered abandoned lot on the way to the Pedway. It took us better than half an hour of scrambling after the tiny faerie through the muggy heat, and by the end of it I wished I'd told Toot-toot that we wanted someone who could read a street map and guide us there in a car.

Chicago's commuter tunnels are fairly recent construction, compared to much of the rest of the city. The tunnels are a maze if you don't know them—long stretches of identical overhead lights, drab, clean walls dotted with advertising posters, and intersections bearing plain and not always helpful directional signs. The tunnels closed after the workday and wouldn't open up again until around six the next morning, but Elidee led us to an unfinished building at Randolph and Wabash. She flitted around in front of a service access door that proved to be unlocked and that led down to a similar door that opened onto a darkened section of the Pedway that looked as though it had been under construction but was abandoned when the building had shut down.

It was completely dark, so I slipped the silver pentacle off my neck, lifting it in my hand and focusing a quiet effort of will upon it. The five-pointed star has been a symbol of magic for centuries, representing the four elements and the power of spirit bound within the circle of will—primal power under the control of human thought. I held the pentacle before me, and as I concentrated it began to glow with a gentle blue light, illuminating enough of our surroundings that we could navigate through the dark, silent tunnels. The little faerie drifted in front of us down the tunnel, and we followed her without speaking. She took us to the intersection with the main tunnels of the Pedway and on a brief walk down another tunnel, to a section shut behind a rusting metal gate with a sign that read, DANGER KEEP OUT. The gate proved to be unlocked, and we went down the tunnel, into a damper section of tunnels, rife with the smell of mold, that was clearly not a part of the Pedway proper.

After another fifty or sixty feet we reached a place where the walls became rough and uneven and shadows lay thick and heavy, despite the glow of my wizard's light.

Elidee drifted over to an especially dark section of wall and flew in a little circle in front of it.

"Okay," I said. "I guess this is where we get in."

"What is where we get in?" Billy asked, his voice skeptical. "Get into where?"

"Undertown," I said. I ran my hands over the wall. To the casual touch it appeared to be bare, unfinished concrete, but I felt a slight unsteadiness when I pressed against it. It couldn't have been solid stone. "Must be a panel here somewhere. Trigger of some kind."

"What do you mean, 'Undertown'? I've never heard of it before."

"I was probably working here for five or six years before I did," I said. "You have to understand the history of Chicago. How they did things here."

Billy folded his arms. "I'm listening."

"The city is a swamp," I said, still searching for a means of opening the door with my fingertips. "We're darn near level with Lake Michigan. When they first built the place, the town kept sinking into the muck. I mean, every year it sank lower. They used to build streets, then build a latticework of wood over them, and then another street on top of that, planning on them slowly sinking. They planned houses the same way. Built the front door on the second floor and called it a 'Chicago entry, so when the house sank, the front door would be at ground level."

"What about when the street sank?"

"Built another one on top of it. So you wound up with a whole city existing under the street level. They used to have a huge problem with rats and criminals holing up under the streets."

"But not anymore?" Billy asked.

"The rats and thugs mostly got crowded out by other things. Became a whole miniature civilization down here. And it was out of sight of the sun, which made it friendly space for all the night-crawling critters around."

"Hence, Undertown," Billy said.

I nodded. "Undertown. There are a lot of tunnels around Chicago. The Manhattan Project was housed in them for a while during World War Two. Did all that atomic bomb research."

"That's cheerful. You come down here a lot?"

I shook my head. "Hell, no. All kinds of nastiness lives down here."

Billy frowned at me. "Like what?"

"Lots of things. Stuff you don't often see on the surface. Things even wizards know almost nothing about. Goblins, spirits of the earth, wyrms, things that have no name. Plus the usual riffraff. Vampires sometimes find lairs down here during the day. Trolls can hide here too. Molds and fungi you don't get in most of the natural world. You name it."

Billy pursed his lips thoughtfully. "So you're taking us into a maze of lightless, rotting, precarious tunnels full of evil faeries and monsters."

I nodded. "Maybe leftover radiation, too."

"God, you're a fun guy, Harry."

"You're the one who wanted in on the action." My fingers found a tiny groove in the wall, and when I pressed against it a small, flat section of stone clicked and retracted. The switch had to have triggered some kind of release, because the section of wall pivoted in the center, turning outward, and forming a door that led into still more dank darkness. "Hah," I said with some satisfaction. "There we go."

Billy pressed forward and tried to step through the door, but I put a hand on his shoulder and stopped him. "Hang on. There are some things you need to know."

Billy frowned, but he stopped, listening.

"These are faeries. We'll probably run into a lot of the Sidhe, their nobles, hanging out with the Winter Lady. That means that they're going to be dangerous and will probably try to entrap you."

"What do you mean, entrap me?" Billy said.

"Bargains," I said. "Deals. They'll try to offer you things, get you to trade one thing for another."

"Why?"

I shook my head. "I don't know. It's in their nature. The concept of debt and obligation is a huge factor in how they behave."

Billy lifted his eyebrows. "That's why that little guy worked for you, right? Because he owed you for the pizza and he had a debt to you."

"Right," I said. "But it can work both ways. If you owe them something, they have a conduit to you and can use magic against you. The basic rule is not to accept any gifts from them—and for God's sake, don't offer them any gifts. They find anything other than an equal exchange to be either enticing or insulting. It isn't a big deal with little guys like Toot, but if you get into it with a Sidhe Lord you might not live through it."

Billy shrugged. "Okay. No gifts. Dangerous faeries. Got it."

"I'm not finished. They aren't going to be offering you wrapped packages, man. These are the Sidhe. They're some of the most beautiful creatures there are. And they'll try to put you off balance and tempt you."

"Tempt me? Like with sex, is that what you're saying?"

"Like any kind of sensual indulgence. Sex, food, beauty, music, perfume. When they offer, don't accept it, or you'll be opening yourself up to a world of hurt."

Billy nodded. "Okay, got it. Let's go already."

I eyed the younger man, and he gave me an impatient look. I shook my head. I don't think I could have adequately conveyed the kind of danger we might be walking into with mere words in any case. I took a deep breath and then nodded to Elidee. "All right, Tinkerbell. Let's go."

The tiny scarlet light gave an irritated bob and then darted through the concealed doorway and into the darkness beyond. Billy narrowed his eyes and followed it, and I went after him. We found ourselves in a tunnel where one wall seemed to be made of ancient, moldering brick and the other of a mixture of rotting wooden beams, loose earth, and winding roots. The tunnel ran on out of the circle of light from my amulet. Our guide drifted forward, and we set out to follow her, walking close together.