I entered the station through a tall wooden door set into a deep, high stone arch and checked in with the receptionist. "I'm MacKayla Lane." I got right to the point. "My sister was murdered here last month. I'd like to see the detective that handled her case. I have new information for him."

"Who've you been working with, luv?"

"Inspector O'Duffy. Patrick O'Duffy."

"Sorry, luv. Our Patty's out for a few days. I could set you an appointment with him on Thursday."

An appointment on Thursday? I had a lead now. I didn't want to wait three days. "Is there another inspector I could speak to about this?"

She shrugged. "Could. But you'll be having the best of luck with the one who worked her case. If it were my sister, I'd be waiting for Patty."

I shifted impatiently from foot to foot. The need to do something was burning a hole in my gut, but I wanted to do what was best for Alina, not what was the most immediate. "All right. I'll take an appointment on Thursday. Do you have something in the morning?"

She put me down for the first appointment of the day.

I went to Alina's place next.

Though her lease had been paid up through the end of the month—nonrefundable—I had no idea how long it might take to sort through her things and get everything boxed up to send back to Georgia, so I figured I'd better start now. I wasn't about to leave a single shred of my sister four thousand miles from home.

There was police tape over the door, but it had been cut. I let myself in with the key Inspector O'Duffy had mailed to us in the small package of personal effects found on her body. Her apartment smelled just like her room back home, of peaches-and-cream candles, and Beautiful perfume.

It was dark inside, the shutters drawn. The pub below hadn't yet opened for the day, so it was quiet as a tomb. I fumbled for the light switch. Though we'd been told her place was thoroughly ransacked, I wasn't prepared for it. Fingerprint dust was everywhere. Everything breakable was broken: lamps, knickknacks, dishes, even the mirror set into the mantel above the gas fireplace. The sofa was sliced, cushions torn, books ripped up, bookcases smashed, and even the drapes were shredded. CDs crunched beneath my feet when I stepped into the living room.

Had this been done before or after she'd died? The police had offered no opinion on the timing. I didn't know if what I was seeing was the by-product of mindless rage, or if the killer had been searching for something. Maybe the thing Alina had said we needed to find. Maybe he'd thought she had it already, whatever it was.

Alina's body had turned up miles away, in a trash-filled alley on the opposite side of the River Liffey. I knew exactly where. I'd seen the crime-scene photos. Before I left Ireland, I knew I would end up in that alley, saying my last good-byes to her, but I was in no hurry to do so. This was bad enough.

In fact, five minutes in the place was all I could stand.

I locked up and hurried back down the steps, bursting from the narrow, windowless staircase into the foggy alley behind the bar. I was grateful that I had three and a half more weeks to deal with the situation before her lease expired. Next time I came, I'd be braced for what I would find. Next time I came, I'd be armed with boxes, trash bags, and a broom.

Next time I came, I told myself, as I dragged a sleeve across my cheek, I wouldn't cry.

I spent the rest of the morning and a good part of a drizzly afternoon holed up in an Internet cafe, trying to track down the thing Alina had said we needed to find—a shi-sadu. I tried every search engine. I asked Jeeves. I ran text searches in local online newspapers hoping for a hit. Problem was, I didn't know how to spell it; I didn't know if it was a person, place, or thing, and no matter how many times I listened to the message, I still wasn't sure I understood what she was saying.

Just for the heck of it, I decided to hunt for the odd word the old woman had said last night—too-ah-day. I had no luck with that, either.

A few hours into my frustrating search—I shot off several e-mails too, including an emotional one to my parents—I ordered another coffee and asked two cute Irish guys behind the counter who looked about my age if they had any idea what a shi-sadu was.

They didn't.

"How about a too-ah-day?" I asked, expecting the same answer.

"Too-ah-day?" the dark-haired one repeated, with a slightly different inflection than I'd used.

I nodded. "An old woman in a pub said it to me last night. Any idea what it means?"

"Sure." He laughed. "It's what all you bloody Americans come here hoping to find. That and a pot o' gold, wouldn't that be the right of it, Seamus?" He smirked at his blond companion, who smirked broadly back.

"What's that?" I said warily.

Flapping his arms like little wings, he winked. "Why, that'd be a wee fairy, lass."

A wee fairy. Right. Uh-huh. With Tourist stamped all over my forehead, I took the steaming mug, paid for the coffee, and escorted my flaming cheeks back to my table.

Crazy old woman, I thought irritably, closing down my Internet session. If I ever saw her again, she was going to get an earful.

It was the fog that got me lost.

I would have been okay if it had been a sunny day. But fog has a way of transforming even the most familiar landscape into something foreign and sinister, and the place was already so foreign to me that it quickly took on sinister attributes.

One minute I thought I was heading straight for The Clarin House, plowing down block after block without really paying much attention, the next I was in a dwindling crowd on a street that I hadn't seen before, and suddenly, I was one of only three people on an eerily quiet fog-filled lane. I had no idea how far I'd come. My mind was on other things. I might have walked for miles.

I had what I thought was a really smart idea. I would follow one of the other pedestrians and surely they would lead me back to the main part of town.

Buttoning my jacket against the misting rain, I picked the closer of the two, a fiftyish woman in a beige raincoat and a blue scarf. I had to stick close because the fog was so thick.

Two blocks later, she was clutching her purse tightly to her side and darting nervous glances over her shoulder. It took me a few minutes to figure out what she was frightened of—me. Belatedly I recalled what I'd read in my guidebook about crime in the inner city. Innocent-looking youths of both genders were responsible for much of it.

I tried to reassure her. "I'm lost," I called. "I'm just trying to get back to my hotel. Please, can you help me?"

"Stop following me! Stay away," she cried, quickening her pace, coattails flapping.

"All right, I'm staying." I stopped where I stood. The last thing I wanted to do was chase her off; the other pedestrian was gone, I needed her. The fog was getting denser by the minute and I had no idea where I was. "Look, I'm sorry I scared you. Could you just point me toward the Temple Bar District? Please? I'm an American tourist and I'm lost."

Without turning or slowing in the least, she flung an arm out in a general leftward direction, then disappeared around the corner, leaving me alone in the fog.

I sighed. Left it was.

I went to the corner, turned, and began walking at a moderate pace. Taking stock of my surroundings as I went, I stepped it up a bit. I seemed to be heading deeper into a dilapidated, industrial part of the city. Storefronts with the occasional apartment above gave way to rundown warehouse-like buildings on both sides of the street with busted-out windows and sagging doors. The sidewalk whittled down to barely a few feet wide and was increasingly trash-littered with every step. I started to feel strongly nauseated, I suppose from the stench of the sewers. There must have been an old paper factory nearby; thick husks of porous yellowed parchment of varying sizes tumbled and blew along the empty streets. Narrow, dingy alleyways were marked at the entrances with peeling painted arrows, pointing to docks that looked as if the last time they'd received a delivery was twenty years ago.