Myrnin was in a mood. A good mood.

"Claire!" As she came down the steps -- the only thing in the shack itself were the steps leading down -- into his main chamber, he flashed across the room in a blur and stopped just an inch away from her, close enough that she flinched back into Sam's broad chest and he steadied her. Myrnin's eyes were wide, blazing with enthusiasm. "I've been waiting! Late, late, late, you're very late, you know. Come on, come on, we haven't got time for nonsense. Did you bring the books? Good. What about Last Will and Testament? Are you familiar with the symbols? Here, take this." Chalk, pressed into her hand. Myrnin moved again, fast as a grasshopper, and rolled an ancient stained chalkboard closer. He had to shove over some stacks of books to do it, which he did with cheerful disregard for how much of a mess he was making.

Sam, almost inaudibly, whispered, "Be careful. He's dangerous when he's like this."

Yeah, no kidding. Claire nodded, swallowed, and smiled as Myrnin turned toward her with those crazy, delighted eyes. She wanted to ask what came after the manic phase, but she didn't dare.

"I'll be in the other room," Sam said. Myrnin waved him off impatiently, barely sparing him a glance.

"Yes, yes, fine, go. Here. First let's start with the Egyptian inscription for asem. Asem. You know what element that represents?"

"Electrum," Claire said, and carefully chalked the symbol. Sort of a bowl, with a big staff through the middle. "How's that?"

"Excellent! Yes, that's it. Now, something difficult. Chesbet."

Sapphire. That was a hard one. Claire bit her lip for a second, getting the order in her mind, and then drew it out. Circle above a double-slashed line, next to a leg, next to a thing that looked kind of like a car with no wheels over two separated circles.

"No, no, no," Myrnin said, grabbed an eraser, and rubbed out the car. "Too modern. Look."

He drew it again, this time more roughly, and it still looked like a car to her. She copied it, twice, until he was satisfied.

There were a lot of symbols, and he quizzed her on just about all of them, growing more and more excited. Her arm ached from holding up the chalk to the board, especially when, after she screwed up the symbol for lead, he made her repeat it a hundred times.

"We should do this on computer," she said, chalking it carefully for the eighty-ninth time. "With a drawing pad."

"Nonsense. You're lucky I don't make you inscribe it with a stylus on a wax tablet, like the old days," Myrnin snorted. "Children. Spoiled children, always playing with the shinest toy."

"Computers are more efficient!"

"I can perform calculations on that abacus faster than you can solve them on your computer," Myrnin sneered.

Okay, now he was pissing her off. "Prove it!"

"What?"

"Prove it." She backed off on her tone, but Myrnin wasn't looking angry; he was looking strangely interested. He stared at her for a second in silence, and then he got the biggest, oddest smile she'd ever seen on the face of a vampire.

"All right," he said. "A contest. Computer versus abacus."

She wasn't at all sure now that was a good idea, even if it had been her idea, essentially. "Um -- what do I win?" More importantly, what do I lose? Making bargains was a way of life in Morganville, and it was a lot like making deals with man-eating fairies. Better be careful what you ask for.

"Your freedom," he said solemnly. His eyes were wide and guileless, his too-young face shining with honesty. "I will tell Amelie you were not suited to the work. She'll let you go about your life, such as it is."

Good prize. Too good. Claire swallowed hard. "And if I lose?"

"Then I eat you," Myrnin said.

With absolutely no change in expression.

"You -- you can't do that." She pulled up the sleeve on her shirt and held up her wrist so the gold bracelet caught the light.

"Don't be ridiculous," he said. "Of course I can do it. I can do anything I want, child. Without me, there is no future. No one, especially Amelie, begrudges me the occasional tidbit. You're hardly large enough to qualify as a meal in any case, and besides, I'm making it well worth your while."

She took a step back from him. A big one. That crazy smile ... She glanced toward the door of the other room, where Sam was waiting for her. No wonder Amelie had told him to stay.

Myrnin gave a sad, theatrical sigh. "Mortals simply aren't what they used to be," he said. "A thousand years ago, you would have bartered your immortal soul for a crust of stale bread. Now I can't even get you to gamble at all, even for your freedom. Really, people have become so ... boring. So, no bet? Really?"

She shook her head. His expression fell into utter disappointment. "All right," he said. "Then you will write me an essay for tomorrow on the history of alchemy. I can't expect it to be scholarly, but I do expect you to understand the basis of what it is that I am trying to teach you."

"You're teaching me alchemy?"

He seemed surprised, and looked around his laboratory. "Can you not see what I'm doing here?"

"But alchemy -- it's crap. I mean, it's like magic, not science."

"Alchemy's accomplishments are sadly forgotten, and yes, magic is an excellent description for things that you have no basis to understand. As for science -- " Myrnin made a rude noise. His eyes had taken on that hectic shine again. "Science is a method, not a religion, yet it can be just as close-minded. Open minds here, Claire. Always open minds. Question everything, accept nothing as fact until you prove it for yourself. Yes?"

She nodded hesitantly, more afraid to disagree with him than convinced. Myrnin grinned at her and slapped her back with stinging force.

"That's my girl," he said. "Now. What do you know of this theory of Schr?dinger's? The one about the cat?"

Myrnin didn't go weird until the very end of her time with him, when he was -- she thought -- getting tired. She had to admit, there was something fun about working in his lab; he had so much passion, so much enthusiasm for everything. Even for scaring her silly. He was like a little kid, all nervous energy and fiddling hands, quick to laugh, quick to cut her down if she made a mistake. He liked to mock, not correct. He thought if she had to figure it out for herself, she'd learn it properly.

She checked her watch and found it was almost eight o'clock -- late. She was supposed to be home by now. Myrnin was ignoring her, temporarily, as she copied out tables of incomprehensible symbols from a book he said was so rare his was the only copy left. She yawned, stretched, and said, "I need to be going."

He had his eye fixed to what looked like a clunky, ancient microscope. "Already?"

"It's late. I should go home."

Myrnin straightened, stared at her, and she saw the storm forming in his expression. "You are dictating to me now?" he snapped. "Who is the master? Who is the student?"

"I -- sorry, but I can't stay here all night!"

Myrnin walked toward her, and she couldn't even recognize him. No more manic energy, no more humor, no more sharp, brilliant anger. He looked troubled and clouded.

"Home," he repeated. "Home is where the heart is. Why don't you leave yours here? I'll take very good care of it."

"M-my -- heart?" She dropped the pen and backed up, putting a big lab table full of chemical equipment between them. Myrnin bared his teeth and put down his fangs. Discovery Channel. King Cobra. Oh God, can he spit venom or something? His eyes flared bright, fueled with something that looked to her like ... fear.

"Don't run," he said, and sounded annoyed. "I hate it when they run. Now, tell me what you're doing here!" he demanded. "Why do you keep following me? Who are you?"

"It's Claire, Myrnin. I'm your apprentice. I'm supposed to be here, remember?"

That was the wrong thing to say, and she had no idea why. Myrnin stopped, and the light in his eyes intensified to insanity. Ugly, and very scary. When he moved, it was a smooth, sinuous glide. "My apprentice," he said. "So I own you, then. I can do as I wish."

King cobra.

"Sam!" Claire yelled, and bolted for the stairs.

She didn't get more than two steps. Myrnin came over the table, scattering glass instruments to shatter in glittering sprays on the floor, and she felt his cold, impossibly strong hands close on her ankles and jerk backwards. She flailed for something to grab onto, but it was only a tower of books, and it collapsed as she fell.

She hit the floor hard enough to put the world on a sparkling, unsteady hold for a few seconds, and when she blinked away the stars Myrnin had taken hold of her shoulders and was staring down at her, inches away.

"Don't," she said. "Myrnin, don't. I'm your friend! I won't hurt you!"

She didn't know why she said it, but it must have been the right thing to do. His eyes widened, white showing all around, and then the glitter of crazy was replaced by a flood of tears. He patted her cheek, soft and confused, and the fangs folded up in his mouth. "Dear child," he said. "What are you doing here? Is Amelie making you come here? She shouldn't. You're far too young and kind. You should tell her you won't come back. I don't want to hurt you, but I will." He tapped his forehead. "This is betraying me. This stupid, stupid flesh." The tapping became violent slaps to his forehead, and tears broke free to run down his cheeks. "I need to teach someone, but not you. Not you, Claire. Too young. Too small. You bring out the beast."

He stood up and wandered away, tsking over the broken glass, righting the fallen books. As if she'd ceased to exist. Claire sat up and rolled to her feet, shaky and scared.

Sam was standing just a few feet away. She hadn't seen or heard him approach, and he hadn't acted to save her. His face was tense, his eyes uneasy.

"He's sick," Claire said.

"Sick, sick, sick, yes, I am," Myrnin said. He had his head in his hands now, as if it hurt him. "We're all sick."

"What's he talking about?" Claire turned to Sam. "Nothing." He shook his head. "Don't listen to him."

Myrnin looked up and bared his teeth. His eyes were fierce, but they were sane. Mostly sane, anyway. "They won't tell you the truth, little morsel, but I will. We're dying. Seventy years ago -- "

Sam moved Claire out of his way, and for the first time since she'd met him, Sam actually looked threatening. "Myrnin, shut up!"

"No," Myrnin sighed. "It's time for talking. I've been shut up enough." He looked up, and his eyes were red-rimmed and full of tears. "Oh, little girl, do you understand? My race is dying. My race is dying and I don't know how to stop it."

Claire's mouth opened and closed, but she couldn't find anything to say. Sam turned toward her, fury still radiating off him like heat. "Ignore him," he said. "He doesn't know what he's saying. We should go, before he remembers what he was about to do. Or forgets what he shouldn't."

Claire cast a look back over her shoulder at Myrnin, who was holding a broken glass pipe in his hands, trying to fit the two pieces back together. When it wouldn't go, he dropped it and covered his face with both hands. She could see his shoulders shaking. "Can't -- shouldn't somebody help him?"

"There's no help," Sam said in a voice flat with anger. "There's no cure. And you're not coming back here again if I can do anything about it."