He woke to firelight and the awareness that he was not alone.

  The fire was small, well-made, built in a stone ring that had not been there when he'd climbed up to the grove that morning. He was lying on his side with his cloak folded under his head as a pillow --- he had not done that --- and the fire between himself and the edge of the grove where the trees had fallen. Night. Full dark. The stars overhead were hard and bright in the way they only got when the air was very cold and very clear. He had been unconscious for hours.

  His left hand throbbed with a pain that felt like memory --- not the sharp immediacy of a wound but the deep ache of something that had happened and settled into the flesh. He lifted it into the firelight. The rune was there: angular lines cut into his palm, healed as if they had been there for years. The skin around the marks was smooth, slightly raised, the colour of old scars. No blood. No rawness. Just lines, precise and permanent, as if he had been born with them and spent twenty-nine years failing to notice.

  The woman sitting on the other side of the fire watched him examine his hand with the expression of someone observing a dog that has found something it should not have eaten.

  'You're awake,' she said. 'Good. I was beginning to think you'd die of it, and then I would have had to deal with the rune in your corpse, which would have been tedious in ways I am not inclined to explain.'

  Ulfar sat up. The world tilted, steadied. He pressed his marked hand against the ground to brace himself and felt nothing --- not the cold of the earth, not the texture of the soil, but the deeper nothing, the spiritual emptiness of ground that had forgotten what it was. Except now the nothing wasn't quite nothing. At the very edge of his perception, beneath the emptiness, something hummed. Faint. Low. A vibration he could only feel through the rune on his palm, as if the mark were a key that fit a lock he had not previously known was there.

  He looked at her.

  She was wrong. That was his first, incoherent thought --- not wrong as in mistaken but wrong as in misplaced. He caught it in pieces, the way the eye catches movement in peripheral dark: the fire bending away from her, not dramatically, a subtle warping as though the light was uncertain about what it was illuminating. The shadows she cast were not the right shape. Her hair was silver-white --- not the white of age, but the white of something that had never been any other colour --- and it moved in a wind that was not blowing. Faint, constant motion, like weeds in a current only she could feel. He had to look directly at her to take in any one detail, and every time he did, another wrong thing appeared at the edge of his vision.

  Her eyes were the colour of a blade's edge. Not grey. Not silver. The colour of the moment where metal becomes sharp enough to cut, seen edge-on. They watched him flatly --- the assessment of someone counting the ways a thing could go wrong.

  'Who are you?' he said. His voice was rough. He tasted iron.

  'That is not the urgent question.' She nodded at his hand. The movement was precise, economical. Nothing about her wasted motion. 'The urgent question is what you are holding and whether you understand what it will do to you if you continue to hold it.'

  'It's in my hand. It's not something I'm holding. It's ---' He looked at the rune again. The lines seemed deeper in the firelight, or perhaps the firelight was doing something he was not accustomed to light doing. 'It's in me.'

  'Yes.' She said this the way Grima might have said it: acknowledging a correct answer with no warmth, because warmth was for people who needed encouragement and she did not dispense encouragement. 'It is in you. It inscribed itself into your soul-substance through the medium of your flesh, because you touched a runic artefact that was not meant for human hands with all the caution of a child picking up a live coal. Now you are carrying something you were not built to carry, in a body that was not designed to hold it, and every being between here and Asgard who can see beyond the material world is going to know about it within days, if they don't already.'

  She paused. The not-wind moved her hair. A strand crossed her face and she did not push it away, as if the concept of hair in one's face was too small a concern to register.

  'My name is Brynja. You are going to need to understand what has happened to you, and I am going to explain it, not because I want to help you but because a human walking around with an active Runefather rune in his palm is a danger to everything in this Realm and several adjacent ones, and I prefer my dangers managed.'

  * * *

  He should have been afraid of her. He understood this in the rational part of his mind, the part that was cataloguing details even as the rest of him was still trying to process the rune and the pain and the hours he had lost. She was not human. That was not speculation or impression. Nothing about her operated on human terms. The way she held herself --- perfectly still between movements, as if stillness were her native state and motion a concession she made reluctantly to the physical world --- was wrong in the way a carved figure was wrong: too precise, too intentional, every line placed with a purpose that organic bodies did not have.

  And there was something else. Something at the edges of his vision that he could not quite resolve. A shimmer, like heat-haze, that clung to her shoulders and upper back. It was thicker there, denser, as if the air were remembering a shape it had once held. When she shifted to adjust the fire, the shimmer moved with her, and for a fraction of a moment he thought he saw ---

  Wings. The ghost of wings. Vast, folded, absent. An architecture of light and absence where something had been and was no longer.

  He blinked and the impression was gone, but his hand --- his marked hand --- throbbed once, hard, as if in recognition.

  'You're staring at my back,' Brynja said, without turning. 'Don't.'

  The flatness in her voice had acquired an edge. He filed this away the way Grima had taught him to file things: not as data, but as story. Something had happened to her back. To the wings. This was a wound.

  'What are you?' he asked.

  'I have told you my name. That is more than you have given me.'

  'Ulfar. Ulfar Grimoltsson.' He caught himself. 'Ulfar Stoneborn, they call me. For the farm.'

  'Ulfar Stoneborn.' She tasted the name the way a smith tested an edge: with professional interest and no sentiment. 'You are the volva's apprentice. The one who recites.'

  'How do you know that?'

  'Because I have been watching this grove for six days, waiting to see what crawled out of the damage, and instead of something dangerous I got a sheep-farmer with a talent for memorising old poems who picked up a rune of creation with his bare hand.' She met his eyes. The blade-edge colour of hers did not warm. 'I was hoping for something more threatening. Something I could fight. Instead I have you, and you are a problem of a completely different kind.'

  'A rune of creation. That's what this is?' He held up his marked palm.

  'That is what it may be. I am not certain, and I do not say things I am not certain of, so understand that what follows is informed conjecture from someone whose information is better than anyone else you are likely to meet.' She said this without arrogance. It was a statement of positioning, like a carpenter saying he knew wood. 'The rune on your hand belongs to a set that predates the Futhark you know, predates the Aesir themselves. It is from the first writing --- the marks made when the world was being shaped from the body of the first giant. If it is what I think it is, then it is a piece of the language the gods used to build everything you see, everything you stand on, everything you breathe.'

  The fire cracked. Sparks rose and the light bent around her and Ulfar's hand pulsed with a low, rhythmic ache that matched his heartbeat.

  'And now it is in you,' she said. 'And you are awake, and it is active, and I need to decide what to do about that before something less patient than me comes looking.'

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  'What do you mean, active?'

  'Close your eyes.'

  He didn't. She raised an eyebrow --- a gesture so human it was startling on her face, like finding a wildflower growing in a sword-rack.

  'I am not going to hurt you, Ulfar Stoneborn. If I intended to hurt you, you would already be hurt, and I would not have built you a fire or folded your cloak. Close your eyes.'

  He closed his eyes.

  'Now open them. Not your eyelids. The other thing. The sense that opened when the rune inscribed. You felt it happen --- don't pretend you didn't. Something woke up in your perception that was not there before. A door. A window. Whatever metaphor is useful to you. Find it. Open it.'

  He sat in the dark behind his eyelids and tried to understand what she meant. The other thing. The sense that opened. He reached for it the way he reached for the beginning of a saga when Grima had asked him to recite: not with his mind exactly, but with the part of him that held things, the deep shelf where the oldest stories lived. Memory and something older than memory. He reached, and something reached back, and the dark behind his eyelids changed.

  He opened his eyes and the world was different.

  The fire was still a fire. The trees were still trees. The ground was still ground. But layered over everything, like a transparency laid on a painting, was a web of threads. They ran through everything --- through the earth, through the shattered trees, through the air itself, through the fire. Fine as spider-silk, luminous, moving with a slow, tidal rhythm that had nothing to do with wind or weather or any physical force he could name. They connected things. The fire to the wood that fed it. The wood to the earth it had grown from. The earth to the stone beneath. The connections were everywhere, a web so dense and fine that the physical world was almost secondary --- a structure hung on the real structure, which was this: the threads, the connections, the binding.

  And through Brynja, the threads were strange.

  They ran through her the way they ran through everything else, but where they touched her they changed. Shifted from the pale, ambient silver of the world's threading to something brighter, denser, a frequency he had no name for --- a colour that existed at the edge of what his new sense could perceive. The threads that ran through her were of a finer weave, a higher tension. She was made of the same material as the world but tuned to a different pitch.

  And at her shoulders, where he had seen the ghost of wings, the threads were severed. Cut. Dozens of them, ending in clean, cauterised points where connection should have been. Threads that had once run upward --- to where, he could not tell, but the direction was unmistakable --- now terminated in smooth, sealed endings. Like veins tied off after an amputation.

  She was watching him with the first expression he had seen on her face that was not contempt or clinical assessment. It was wariness. The wariness of someone being seen.

  'You can see it,' she said. Not a question.

  'I can see --- threads. Everywhere. Running through everything. And through you they're ---' He hesitated. The cut threads at her shoulders were painful to look at. Not physically. They hurt the new sense the way a scream hurt ears. 'Different. And at your back they're cut.'

  A silence. The fire cracked.

  'Yes,' she said. The word was very flat. A door closing. 'They are cut. That is not your concern and you will not ask about it again. What is your concern is that you have just demonstrated Wyrd-sight at a level that takes most practitioners years of dedicated training to achieve, and you have done it within hours of an involuntary rune-inscription, which means either you are extraordinarily gifted or the rune on your hand is doing something to you that has not been done to a human being in a very long time.'

  'Which is it?'

  'I don't know.' For the first time, her voice carried something that might have been honest uncertainty. It did not sit comfortably on her. She looked like a woman who had built her entire existence on the foundation of knowing things, and the foundation had just shifted. 'I genuinely don't know. And that concerns me considerably more than you being able to see the threads.'

  * * *

  They talked through the rest of the night. Talked was generous --- Brynja spoke in clipped, dense paragraphs of information delivered with the manner of someone briefing a subordinate on a situation that had already gone wrong, and Ulfar asked questions that she answered with an impatience that never quite tipped into refusal. She needed him to understand what he was carrying, and he needed to understand it, and neither of them pretended this created any sort of bond between them. It was proximity and necessity, two people in the same burning building agreeing to walk toward the same exit. Nothing more.

  She told him about the Realms.

  Not as story or myth, the way Grima had told him --- nine worlds on the World Tree, Odin in Asgard, the dead in Helheim, the giants in their cold mountains. Brynja spoke about the Realms the way an architect spoke about buildings: as structures with engineering, with frequencies and tolerances and load-bearing connections that could be measured and mapped. The Nine Realms were not places, she said. They were levels of reality, each vibrating at a different frequency of existence. Midgard --- the human world, this world --- was the lowest frequency. A coarse Realm. Dense. Slow. Rich in a particular kind of energy but unable to access the higher registers.

  'Think of it as sound,' she said, and there was an impatience in the concession that told him she was simplifying for his benefit and resented the necessity. 'Midgard hums at the lowest note. Asgard at the highest. Everything in between is a scale. To ascend in power --- to genuinely ascend, not the hedge-magic your volva practised --- is to attune your soul to a higher Realm's vibration. To rewrite the frequency at which you exist.'

  'And that's what the rune is doing.'

  'That is what the rune is doing. The inscription on your hand is not a mark --- it is a process. It has begun to change the frequency at which your soul vibrates. You are being attuned to something higher than Midgard, and I cannot tell you what, because this rune is not in any catalogue I have access to.' She looked at his hand across the fire. The threads of the world --- the Wyrd-threads, she called them --- shimmered around the mark. 'If you do not learn to understand and control what is happening to you, the attuning will not stop. It will continue until it has rewritten every part of you and there is nothing left of the person who picked up a bone in a dead grove.'

  'How do I control it?'

  'I don't know.' That honest uncertainty again. It sat badly on her. He could see, through the Wyrd-sight, the way her threads tightened when she said it --- a physical manifestation of discomfort with her own ignorance. 'This rune is not something I have encountered in practice. The Runefather runes are legends in Asgard --- stories told about the time before the current order, before the gods were the gods. I was not expecting to find one carved into a mortal's palm in a backwater sheep-farming province of northern Midgard.'

  'And you're from Asgard.'

  The silence that followed was long enough to have weather.

  'I was from Asgard,' she said. The cut threads at her shoulders seemed to pulse in the Wyrd-sight. 'I am from nowhere now.'

  He did not ask about the cut threads. He could feel, with the new sense the rune had given him, that the question would be like pressing on a bruise that went all the way through. Instead he asked: 'What are you going to do about me?'

  'I have not decided.' She stood. She moved like a weapon being drawn --- no wasted motion, every angle purposeful. In the firelight, with the Wyrd-threads visible around her in their strange, dense weave, she was terrifying and precise and entirely alone --- the cut threads at her shoulders ending in nothing, reaching toward a sky she could no longer touch. 'You cannot stay here. The grove is dead and your village has no use for a runeforger they don't know they have. The nearest intact sacred site is Hrafnstead, three days' walk south and east. The land-spirit there may be able to tell us something about what happened here --- about what cut this grove's thread. About whether it is an isolated act or part of something larger.'

  'Us.'

  'I am walking in that direction. You are carrying something dangerous. I would rather walk next to a danger I can see than leave it behind me where I cannot.' She looked at him. The blade-edge eyes were steady. 'That is not alliance, Ulfar Stoneborn. That is management.'

  He looked at her across the fire. She looked at him. The flames moved between them and the Wyrd-threads of the world moved in their slow, tidal rhythm, and the rune on his palm ached with the patient insistence of something that had been waiting a very long time to be found.

  'My mentor died three days ago,' he said. 'I have not buried her yet.'

  Something moved behind Brynja's eyes. Not sympathy --- he did not think she had sympathy in the way humans understood it. Recognition, perhaps. An acknowledgement that a thing had been said that carried weight, and that weight deserved to be noted even by someone who did not share it.

  'Then bury her,' she said. 'I will wait. I am patient when the alternative is stupidity.'

  She turned away from the fire and walked to the edge of the grove, where the fallen trees made a barrier against the dark, and she stood there with her back to him, looking out at the night. The ghost-shimmer at her shoulders caught the starlight for a moment --- the memory of wings, the shape of something vast and powerful and gone --- and then she was just a silhouette against the sky, still and watchful and waiting.

  Ulfar sat by the fire and looked at the rune on his hand. The Wyrd-sight faded as his concentration slipped, and the threads vanished, and the world was just the world again: cold ground, dead grove, small fire, strange woman, and a mark on his palm that he could feel pulsing faintly in time with his heart.

  In the morning, he would bury Grima. Speak the words. Make the offering, even to empty ground. And then he would follow a woman who was not human to a sacred place that might already be dead, carrying a mark he did not understand, looking for answers to a question his teacher had died trying to ask.

  He closed his marked hand into a fist. The rune pulsed once, warm against his palm. The only warm thing in the grove. The only warm thing in the hollowed, silenced ground of a place that had once known the voices of three thousand years.

  It was, he thought, a terrible beginning to a saga. Grima would have hated it --- too much ambiguity, not enough action. 'Begin with a sword or a storm or a woman walking out of the sea,' she'd told him. 'Begin with something happening. The audience will forgive you almost anything if you begin with something happening.'

  Something had happened. A grove had died and his teacher had died and a rune had carved itself into his hand and a woman with severed wings was standing at the edge of the dark, waiting for him.

  He decided that was enough of a beginning to keep going.