"No? I haven't seen so many vampires, witches, and daemons in one place since my aunts dragged me to a pagan summer festival when I was thirteen. If they're not your friends, why are they always hanging around you?" I wiped the back of my hand across my forehead and pushed the damp hair away from my face.

"Good G.o.d," the vampire murmured incredulously. "The rumors are true."

"What rumors?" I said impatiently.

"You think these . . . things things want to spend time with me?" Clairmont's voice dripped with contempt and something that sounded like surprise. "Unbelievable." want to spend time with me?" Clairmont's voice dripped with contempt and something that sounded like surprise. "Unbelievable."

I worked my fleece pullover up above my shoulders and yanked it off. Clairmont's eyes flickered to my collarbones, over my bare arms, and down to my fingertips. I felt uncharacteristically naked in my familiar rowing clothes.

"Yes," I snapped. "I've lived in Oxford. I visit every year. The only thing that's been different this time is you. you. Since you showed up last night, I've been pushed out of my seat in the library, stared at by strange vampires and daemons, and threatened by unfamiliar witches." Since you showed up last night, I've been pushed out of my seat in the library, stared at by strange vampires and daemons, and threatened by unfamiliar witches."

Clairmont's arms rose slightly, as if he were going to take me by the shoulders and shake me. Though I was by no means short at just under five-seven, he was so tall that my neck had to bend sharply so I could make eye contact. Acutely aware of his size and strength relative to my own, I stepped back and crossed my arms, calling upon my professional persona to steel my nerves.

"They're not interested in me, Dr. Bishop. They're interested in you. you."

"Why? What could they possibly want from me?"

"Do you really not know why every daemon, witch, and vampire south of the Midlands is following you?" There was a note of disbelief in his voice, and the vampire's expression suggested he was seeing me for the first time.

"No," I said, my eyes on two men enjoying their afternoon pint at a nearby table. Thankfully, they were absorbed in their own conversation. "I've done nothing in Oxford except read old ma.n.u.scripts, row on the river, prepare for my conference, and keep to myself. It's all I've ever done here. There's no reason for any creature to pay this kind of attention to me."

"Think, Diana." Clairmont's voice was intense. A ripple of something that wasn't fear pa.s.sed across my skin when he said my first name. "What have you been reading?"

His eyelids dropped over his strange eyes, but not before I'd seen their avid expression.

My aunts had warned me that Matthew Clairmont wanted something. They were right.

He fixed his odd, gray-rimmed black eyes on me once more. "They're following you because they believe you've found something lost many years ago," he said reluctantly. "They want it back, and they think you can get it for them."

I thought about the ma.n.u.scripts I'd consulted over the past few days. My heart sank. There was only one likely candidate for all this attention.

"If they're not your friends, how do you know what they want?"

"I hear things, Dr. Bishop. I have very good hearing," he said patiently, reverting to his characteristic formality. "I'm also fairly observant. At a concert on Sunday evening, two witches were talking about an American-a fellow witch-who found a book in Bodley's Library that had been given up for lost. Since then I've noticed many new faces in Oxford, and they make me uneasy."

"It's Mabon. That explains why the witches are in Oxford." I was trying to match his patient tone, though he hadn't answered my last question.

Smiling sardonically, Clairmont shook his head. "No, it's not the equinox. It's the ma.n.u.script."

"What do you know about Ashmole 782?" I asked quietly.

"Less than you do," said Clairmont, his eyes narrowing to slits. It made him look even more like a large, lethal beast. "I've never seen it. You've held it in your hands. Where is it now, Dr. Bishop? You weren't so foolish as to leave it in your room?"

I was aghast. "You think I stole stole it? From the Bodleian? How dare you suggest such a thing!" it? From the Bodleian? How dare you suggest such a thing!"

"You didn't have it Monday night," he said. "And it wasn't on your desk today either."

"You are are observant," I said sharply, "if you could see all that from where you were sitting. I returned it Friday, if you must know." It occurred to me, belatedly, that he might have rifled through the things on my desk. "What's so special about the ma.n.u.script that you'd snoop through a colleague's work?" observant," I said sharply, "if you could see all that from where you were sitting. I returned it Friday, if you must know." It occurred to me, belatedly, that he might have rifled through the things on my desk. "What's so special about the ma.n.u.script that you'd snoop through a colleague's work?"

He winced slightly, but my triumph at catching him doing something so inappropriate was blunted by a twinge of fear that this vampire was following me as closely as he obviously was.

"Simple curiosity," he said, baring his teeth. Sarah had not misled me-vampires don't have fangs.

"I hope you don't expect me to believe that."

"I don't care what you believe, Dr. Bishop. But you should be on your guard. These creatures are serious. And when they come to understand what an unusual witch you are?" Clairmont shook his head.

"What do you mean?" All the blood drained from my head, leaving me dizzy.

"It's uncommon these days for a witch to have so much . . . potential." Clairmont's voice dropped to a purr that vibrated in the back of his throat. "Not everyone can see it-yet-but I can. You shimmer with it when you concentrate. When you're angry, too. Surely the daemons in the library will sense it soon, if they haven't already."

"I appreciate the warning. But I don't need your help." I prepared to stalk away, but his hand shot out and gripped my upper arm, stopping me in my tracks.

"Don't be too sure of that. Be careful. Please." Clairmont hesitated, his face shaken out of its perfect lines as he wrestled with something. "Especially if you see that wizard again."

I stared fixedly at the hand on my arm. Clairmont released me. His lids dropped, shuttering his eyes.

My row back to the boathouse was slow and steady, but the repet.i.tive movements weren't able to carry away my lingering confusion and unease. Every now and again, there was a gray blur on the towpath, but nothing else caught my attention except for people bicycling home from work and a very ordinary human walking her dog.

After returning the equipment and locking the boathouse, I set off down the towpath at a measured jog.

Matthew Clairmont was standing across the river in front of the University Boat House.

I began to run, and when I looked back over my shoulder, he was gone.

Chapter 5.

After dinner I sat down on the sofa by the sitting room's dormant fireplace and switched on my laptop. Why would a scientist of Clairmont's caliber want to see an alchemical ma.n.u.script-even one under a spell-so much that he'd sit at the Bodleian all day, across from a witch, and read through old notes on morphogenesis? His business card was tucked into one of the pockets of my bag. I fished it out, propping it up against the screen.

On the Internet, below an unrelated link to a murder mystery and the unavoidable hits from social-networking sites, a string of biographical listings looked promising: his faculty Web page, a Wikipedia article, and links to the current fellows of the Royal Society.

I clicked on the faculty Web page and snorted. Matthew Clairmont was one of those faculty members who didn't like to post any information-even academic information-on the Net. On Yale's Web site, a visitor could get contact information and a complete vita for practically every member of the faculty. Oxford clearly had a different att.i.tude toward privacy. No wonder a vampire taught here.

There hadn't been a hit for Clairmont at the hospital, though the affiliation was on his card. I typed "John Radcliffe Neurosciences" "John Radcliffe Neurosciences" into the search box and was led to an overview of the department's services. There wasn't a single reference to a physician, however, only a lengthy list of research interests. Clicking systematically through the terms, I finally found him on a page dedicated to the "frontal lobe," though there was no additional information. into the search box and was led to an overview of the department's services. There wasn't a single reference to a physician, however, only a lengthy list of research interests. Clicking systematically through the terms, I finally found him on a page dedicated to the "frontal lobe," though there was no additional information.

The Wikipedia article was no help at all, and the Royal Society's site was no better. Anything useful hinted at on the main pages was hidden behind pa.s.swords. I had no luck imagining what Clairmont's user name and pa.s.sword might be and was refused access to anything at all after my sixth incorrect guess.

Frustrated, I entered the vampire's name into the search engines for scientific journals.

"Yes." I sat back in satisfaction.

Matthew Clairmont might not have much of a presence on the Internet, but he was certainly active in the scholarly literature. After clicking a box to sort the results by date, I was provided with a snapshot of his intellectual history.

My initial sense of triumph faded. He didn't have one intellectual history. He had four.

The first began with the brain. Much of it was beyond me, but Clairmont seemed to have made a scientific and medical reputation at the same time by studying how the brain's frontal lobe processes urges and cravings. He'd made several major breakthroughs related to the role that neural mechanisms play in delayed-gratification responses, all of which involved the prefrontal cortex. I opened a new browser window to view an anatomical diagram and locate which bit of the brain was at issue.

Some argued that all scholarship is thinly veiled autobiography. My pulse jumped. Given that Clairmont was a vampire, I sincerely hoped delayed gratification was something he was good at.

My next few clicks showed that Clairmont's work took a surprising turn away from the brain and toward wolves-Norwegian wolves, to be precise. He must have spent a considerable amount of time in the Scandinavian nights in the course of his research-which posed no problem for a vampire, considering their body temperature and ability to see in the dark. I tried to imagine him in a parka and grubby clothes with a notepad in the snow-and failed.

After that, the first references to blood appeared.

While the vampire was with the wolves in Norway, he'd started a.n.a.lyzing their blood to determine family groups and inheritance patterns. Clairmont had isolated four clans among the Norwegian wolves, three of which were indigenous. The fourth he traced back to a wolf that had arrived in Norway from Sweden or Finland. There was, he concluded, a surprising amount of mating across packs, leading to an exchange of genetic material that influenced species evolution.

Now he was tracing inherited traits among other animal species as well as in humans. Many of his most recent publications were technical-methods for staining tissue samples and processes for handling particularly old and fragile DNA.

I grabbed a fistful of my hair and held tight, hoping the pressure would increase blood circulation and get my tired synapses firing again. This made no sense. No scientist could produce this much work in so many different subdisciplines. Acquiring the skills alone would take more than a lifetime-a human lifetime, that is.

A vampire might well pull it off, if he had been working on problems like this over the span of decades. Just how old was Matthew Clairmont behind that thirty-something face?

I got up and made a fresh cup of tea. With the mug steaming in one hand, I rooted through my bag until I found my mobile and punched in a number with my thumb.

One of the best things about scientists was that they always had their phones. They answered them on the second ring, too.

"Christopher Roberts."

"Chris, it's Diana Bishop."

"Diana!" Chris's voice was warm, and there was music blaring in the background. "I heard you won another prize for your book. Congratulations!"

"Thanks," I said, shifting in my seat. "It was quite unexpected."

"Not to me. Speaking of which, how's the research going? Have you finished writing your keynote?"

"Nowhere near," I said. That's what I should should be doing, not tracking down vampires on the Internet. "Listen, I'm sorry to bother you in the lab. Do you have a minute?" be doing, not tracking down vampires on the Internet. "Listen, I'm sorry to bother you in the lab. Do you have a minute?"

"Sure." He shouted for someone to turn down the noise. It remained at the same volume. "Hold on." There were m.u.f.fled sounds, then quiet. "That's better," he said sheepishly. "The new kids are pretty high energy at the beginning of the semester."

"Grad students are always high energy, Chris." I felt a tiny pang at missing the rush of new cla.s.ses and new students.

"You know it. But what about you? What do you need?"

Chris and I had taken up our faculty positions at Yale in the same year, and he wasn't supposed to get tenure either. He'd beaten me to it by a year, picking up a MacArthur Fellowship along the way for his brilliant work as a molecular biologist.

He didn't behave like an aloof genius when I cold-called him to ask why an alchemist might describe two substances heated in an alembic as growing branches like a tree. n.o.body else in the chemistry department had been interested in helping me, but Chris sent two Ph.D. students to get the materials necessary to re-create the experiment, then insisted I come straight to the lab. We'd watched through the walls of a gla.s.s beaker while a lump of gray sludge underwent a glorious evolution into a red tree with hundreds of branches. We'd been friends ever since.

I took a deep breath. "I met someone the other day."

Chris whooped. He'd been introducing me to men he'd met at the gym for years.

"There's no romance," I said hastily. "He's a scientist."

"A gorgeous scientist is exactly what you need. You need a challenge-and a life."

"Look who's talking. What time did you leave the lab yesterday? Besides, there's already one gorgeous scientist in my life," I teased.

"No changing the subject."

"Oxford is such a small town, I'm bound to keep running into him. And he seems to be a big deal around here." Not strictly true, I thought, crossing my fingers, but close enough. "I've looked up his work and can understand some of it, but I must be missing something, because it doesn't seem to fit together."

"Tell me he's not an astrophysicist," Chris said. "You know I'm weak on physics."

"You're supposed to be a genius."

"I am," he said promptly. "But my genius doesn't extend to card games or physics. Name, please." Chris tried to be patient, but no one's brain moved fast enough for him.

"Matthew Clairmont." His name caught in the back of my throat, just as the scent of cloves had the night before.

Chris whistled. "The elusive, reclusive Professor Clairmont." Gooseflesh rose on my arms. "What did you do, put him under a spell with those eyes of yours?"

Since Chris didn't know I was a witch, his use of the word "spell" was entirely accidental. "He admires my work on Boyle."

"Right," Chris scoffed. "You turned those crazy blue-and-gold starbursts on him and he was thinking about Boyle's law? He's a scientist, Diana, not a monk. And he is a big deal, incidentally."

"Really?" I said faintly.

"Really. He was a phenom, just like you, and started publishing while he was still a grad student. Good stuff, not c.r.a.p-work you'd be happy to have your name on if you managed to produce it over the course of a career."

I scanned my notes, scratched out on a yellow legal pad. "This was his study of neural mechanisms and the prefrontal cortex?"

"You've done your homework," he said approvingly. "I didn't follow much of Clairmont's early work-his chemistry is what interests me-but his publications on wolves caused a lot of excitement."

"How come?"

"He had amazing instincts-why the wolves picked certain places to live, how they formed social groups, how they mated. It was almost like he was a wolf, too."

"Maybe he is." I tried to keep my voice light, but something bitter and envious bloomed in my mouth and it came out harshly instead.

Matthew Clairmont didn't have a problem using his preternatural abilities and thirst for blood to advance his career. If the vampire had been making the decisions about Ashmole 782 on Friday night, he would have touched the ma.n.u.script's ill.u.s.trations. I was sure of it.

"It would have been easier to explain the quality of his work if he were were a wolf," Chris said patiently, ignoring my tone. "Since he isn't, you just have to admit he's very good. He was elected to the Royal Society on the basis of it, after they published his findings. People were calling him the next Attenborough. After that, he dropped out of sight for a while." a wolf," Chris said patiently, ignoring my tone. "Since he isn't, you just have to admit he's very good. He was elected to the Royal Society on the basis of it, after they published his findings. People were calling him the next Attenborough. After that, he dropped out of sight for a while."

I'll bet he did. "Then he popped up again, doing evolution and chemistry?"

"Yeah, but his interest in evolution was a natural progression from the wolves."

"So what is it about his chemistry that interests you?"

Chris's voice got tentative. "Well, he's behaving like a scientist does when he's discovered something big."

"I don't understand." I frowned.