My stupid hand hurt like hell. I had half a dozen really gut-wrenchingly good reasons to be afraid, and I was. Worst of all, if I made any mistakes, Murphy was going to be the one to pay for it. If that happened, I didn't know what I would do.

I drew it all in, the good, the bad, and the crazy, a low buzz that coursed through the air and rattled the idols and candles and incense holders on their shelves in the store around me. In the glass door of the shop I saw my left hand vanish, replaced with an irregular globe of angry blue light that trailed bits of heatless fire to the floor. I pulled in the energy from all around me, readying myself to defend, to attack, to protect, or to destroy. I didn't know what the two cloaked figures wanted, but I wanted them to know that if they'd come looking for a fight, I'd be willing to oblige them.

I held my power around me like a cloak and slipped out to face the pair waiting for me on the sidewalk. I took my time, every step unhurried and precise. I kept an eye on them, but only in my peripheral vision. Otherwise I left my eyes on the ground and walked slowly, until the blue glow of my shield light fell on their dark robes, making the black look blue, darkening the shadows in the folds to hues too dark to have names. Then I stopped and lifted my eyes slowly, daring them to meet my gaze.

It might have been my imagination, but I thought the pair of them rocked back a little, swaying like reeds before an oncoming storm. October wind blew about us, freezing-cold air that took its chill from the icy depths of Lake Michigan.

"What do you want?" I asked them. I borrowed frost from the wind and put it in my voice.

The larger of the pair spoke. "The book."

But which book? I wondered. "Uh-huh. You're a Schubert fan boy, aren't you? You've got the look."

"Goethe, actually," he said. "Give it to me."

He was definitely after a copy of der Erlking, then. His voice was… odd. Male, certainly, but it didn't sound quite human. There was a kind of quavering buzz in it that made it warble, somehow, made the words slither uncertainly. The words were slow and enunciated. They had to be, in order to be intelligible.

"Bite me," I answered him. "Get your own book, Kemmlerite."

"I have nothing but disdain for the madman Kemmler," he spat. "Have a care what insults you offer. This need not involve you at all, Dresden."

That gave me a moment's pause, as they say. Taking on arrogant, powerful dark wizards is one thing. Taking on ones who have done their homework and who know who you are is something else entirely. It was my turn to be rattled.