He stayed.

Not permanently — not at first. He'd appear at the side door after sunset, knock, and wait. If you said "come in," he'd sit on the bench, accept his tea, and watch you work. If you didn't answer — because you were busy, or tired, or simply not in the mood to share your air with a vampire — he'd leave. You'd find a stray moonflower on the doorstep the next morning, which you chose to interpret as an apology rather than a claim.

The boundary line held. Six feet. He didn't cross it.

Instead, he learned to orbit you at a fixed distance, like a cold moon circling a warm planet. He sat on the bench and read whatever book was closest, turning pages with the careful precision of someone who had been told the manuscripts were more valuable than he was and had accepted it. He offered commentary — dry, sardonic, occasionally insightful — on the texts you were cataloging, and you learned, reluctantly, that two centuries of existence had given him a breadth of historical knowledge that was genuinely useful.

"That's not a Calishite trade agreement," he said one evening, leaning over the back of the bench to squint at the document in your hands. "That's a love letter. The merchant seal at the top is decorative. Look at the second paragraph. 'Your eyes are like the wells of the desert' is not standard commercial language."

"How do you know Calishite love letter conventions?"

"Darling, I know love letter conventions in fourteen languages. Some of us had hobbies before we died."

You filed the letter in the personal correspondence section and didn't think about the fact that you'd almost smiled.

On the nights he didn't come, the archive felt different. Not emptier — a building full of ten thousand manuscripts was never empty. But the quality of the silence changed. It went from the occupied quiet of two people working in proximity to the vast, ringing hush of a woman alone in a building that was older than her bloodline. She noticed the difference and resented noticing it.

On the nights he did come, there was a rhythm. He'd knock. She'd say "come in" or she wouldn't. If he entered, he'd sit on the bench, accept the tea she placed at the six-foot line, and read until she told him to leave or until the candle burned down, whichever came first. Sometimes the silence lasted hours. Sometimes he'd make an observation about whatever he was reading — a dry remark about Tethyrian tax policy or the handwriting of a fourteenth-century scribe — and she'd respond or she wouldn't, and neither option seemed to offend him.

He was learning her rhythms. She was aware of this and chose to interpret it as clinical adaptation rather than predatory mapping. The distinction, she suspected, was academic.

He was, you discovered, genuinely useful in the archive. He could identify hand scripts from six different periods by the shape of the letterforms alone. He knew which trade routes had operated during which decades, which made dating undated merchant correspondence trivially easy. He could read Elvish, Dwarvish, Infernal, and three dialects of Alzhedo, and he would occasionally correct your translations of Chultan botanical terms with a casual precision that suggested he'd spent significant time in the region.

"When were you in Chult?" you asked one night, not looking up from the scroll you were indexing.

A pause. Longer than his usual pauses, which were theatrical by design.

"Before," he said. The word carried a specific weight.

You didn't press. Before meant before Cazador, and the way his voice flattened when he said it told you everything about the border between the man who had existed and the creature who existed now.

You went back to indexing. He went back to reading. The fire crackled.

Some silences were kinder than conversation.

There were other silences. The ones where he'd stop reading and stare at a passage, his jaw working, and you'd know he'd hit something that dragged him backward. You never asked. He never explained. The book would close, and he'd sit with his hands flat on his knees, breathing the imitation breaths, and after a while the tension would drain and he'd pick up the book again.

There were the nights he brought things. Small objects, left on the edge of the bench like offerings at a threshold he couldn't cross: a river stone, smooth and flat, that he'd found on the garden path. A sprig of jasmine, taken from the bush outside the kitchen door. Once, a torn-out page from a book he'd found in the village — a woodcut illustration of a cat sleeping in a window box, placed face-up on the six-foot line without comment.

You kept the river stone on the windowsill above your desk. You pressed the jasmine between the pages of the Genasi journal. The cat illustration went on the wall above the stove with a tack.

You did not discuss these transactions. They existed outside the clinical framework — outside the protocol, outside the measured ounces and the sterilized lancets and the six feet of careful distance. They were the language of a creature who had been stripped of every other form of currency and had fallen back on the oldest one: here is a thing I found, and I thought of you, and I am placing it at the edge of the distance you set because I cannot come closer.

You filed them. You filed everything. But these went into the drawer without a label, alongside the expression on his face when he said the tea was good.

---

The blood arrangement began on the third night.

You'd spent two days researching vampiric physiology, cross-referencing your own observations with the texts in the archive, and the Genasi journal's notes on blood-carried restoration magic. You'd devised a protocol that satisfied your clinical standards.

The principles were straightforward. His system had imprinted on a massive, uncontrolled dose of her magic — the equivalent of a patient whose tolerance had been set by an overdose. The tapering protocol needed to provide enough to prevent withdrawal symptoms while gradually resetting his baseline to a sustainable level.

No biting. No skin contact during the transfer. You drew a small amount of your own blood using a sterilized lancet — the kind you'd use for a blood sample — and collected it in a ceramic cup. One ounce. Measured against the line you'd scratched into the clay. Controlled. The magic in your blood was diluted by the extraction process, which meant the dose was mild. A fraction of what he'd gotten in the forest.

You tested the process on yourself first. One ounce of blood, drawn from the inside of your left elbow. The puncture healed within the hour — faster than a normal wound, the Genasi restoration magic knitting the tissue from the inside. The draw left you slightly lightheaded but functional. She could sustain one ounce per night without compromising her own reserves, provided she ate well and slept adequately.

You set the cup on the edge of your desk, at the six-foot line. He picked it up without crossing it.

He drank it the way a wine taster drinks — slowly, with his eyes half-closed, savoring something that was clearly more than the sum of its physical components. A faint flush crept up his throat. The shivering stopped for an hour. His posture loosened. The constant, white-knuckled tension in his shoulders — the coiled readiness of a creature always expecting punishment — eased by a fraction.

"More," he said.

"No."

"Please."

"One ounce per night. That's the dosage."

"I'm going to wither."

"You're going to adjust. Your system imprinted on a massive, uncontrolled dose. I'm retraining it to function on a sustainable amount. This is standard dependence tapering protocol."

He looked at the empty cup. He looked at you.

"You're treating me like an addict," he said.

"I'm treating you like a patient. The distinction is a matter of perspective."

He opened his mouth — a retort forming, the old reflexive quip. Then he closed it. He looked at the cup again. At the precise scratch-line marking one ounce. At the lancet case on your desk, sterilized and closed. At the whole, careful architecture of a system designed to keep him alive without destroying you.

"No one has ever —" He stopped. The mask flickered. Something underneath it moved, surfaced briefly, submerged again. "Never mind."

"What?"

"Nothing." He set the cup on the desk. "Same time tomorrow?"

"Same time tomorrow."

He went to the side door. He paused, one hand on the frame. Rain was still drumming on the roof.

"The tea was good," he said, without turning around.

"It was chamomile."

"I know. It was still good."

He stepped into the rain, and you heard the soft sound of him climbing the garden wall to whatever perch he'd claimed above the east wing. You went back to your cataloging. The archive was quiet around you, smelling of parchment and rosemary, the fire popping low in the hearth.

You picked up the ceramic cup. Held it for a moment. Set it in the basin to wash.

The protocol was working. The data supported it. One ounce per night, delivered without contact, consumed in controlled conditions. Withdrawal symptoms managed. Reservoir stable. Clinical detachment maintained.

You told yourself that. You wrote it in your notes. You filed it under treatment plan and went to bed.

You did not file the expression on his face when he said the tea was good. That went somewhere else, somewhere you chose not to examine, in a drawer without a label.

---

Thaddeus noticed, of course. Thaddeus noticed everything.

It was a quiet morning, rain still drumming on the roof, the archive empty except for the two of you. You were cataloging a crate of old ledger titles when his shadow fell across your desk. He held two mugs of chicory broth and a look of careful, measured concern.

"I spoke with the night porter this morning," he said softly, handing you a mug. "He's been telling the other scribes that a 'white shadow' has been seen in the garden after dark. Moving through the hedgerows. Watching the east wing windows."

You didn't look up from the ledger.

"I've told the porter it's a stray cat caught in the moonlight," Thaddeus continued. He sat on the corner of your desk, something he only did when he wanted you to know the conversation was personal. "He accepted it. For now." He paused. "The cat would do well to stay out of sight."

"He knocks before he enters. He sits on the bench. He doesn't touch the manuscripts." You dipped your quill. "He's under control."

"I don't doubt that you believe so." Thaddeus sipped his broth. His eyes drifted to the bench, where a faint indentation in the cushion betrayed regular use. Then to the edge of your desk, where the ceramic cup sat, washed clean, beside your inkwell. "My dear, I have lived long enough to recognize the habits of a woman who has taken in a stray. The extra cup. The blanket. The way you've rearranged your workspace to include a sightline to the door."

"I'm a healer. He needed help. It's what I do."

"What you do," Thaddeus said gently, "is look at a wolf shivering in the rain and build it a fire. It is one of your finest qualities and also, I suspect, the one that will get you into the most trouble."

You set down your quill.

"He's not dangerous," you said. And then, because you owed Thaddeus honesty: "He was. He's not anymore. Not to me."

The old elf studied you for a long moment. His sharp eyes missed nothing — not the healed scar on your neck, not the careful way you'd positioned the bench at exactly six feet, not the faint blue tint under your fingernails that appeared every time you drew blood for the ceramic cup.

"I will not bring the guards down on him," Thaddeus said finally. He folded his hands in his lap — the gesture he used when he'd made a decision and wanted her to know it was final. "I have lived four centuries, child. I have seen elves fall in love with humans and humans fall in love with storms and once, memorably, a halfling who fell in love with a bridge. I have learned that the heart is a poor strategist but a persistent one." He paused. "I see how much yours is invested in fixing broken things, and I respect your choices too much to override them. But promise me this — if the wolf decides the fire isn't enough and starts looking at the hand that feeds it, you will tell me."

"I will."

"And you'll keep your guard up."

"Always."

He nodded, patted your shoulder, and went back to the east wing without another word.

You sat at your desk for a while after he left, your hands resting on the ledger, your eyes on the bench.

The boundary line was holding. The protocol was working. The tremors had stopped. He was reading books and making sardonic comments and drinking his measured ounce of magic-laced blood and sitting on his bench at exactly six feet, and everything was under control.

You told yourself that. You almost believed it.

---