Morning wind moved quietly through the pines surrounding Sanctuary, carrying the smell of cold resin and damp earth. Mist still clung to the lower branches of the forest while sunlight filtered through the canopy in pale gold shafts that shifted slowly as the branches moved. The courtyard beneath the Great Tree had begun its usual rhythm — wagons rolling, voices carrying across the compound, tools striking wood and iron in the steady percussion of a place that had work to do and was doing it.
Near the northern edge of the compound the air felt different. Still in a specific way, the way air went still when something large was about to move through it.
Sleipnir stamped once. The great horse stood a full head taller than any warhorse born of Midgard, eight powerful legs shifting against the earth with the contained energy of something that was always slightly too much for whatever ground it was standing on. He turned his head toward Olaf as the All-Father came across the yard, and the horse's breath steamed in the cool morning air in long slow plumes.
Olaf rested one hand along the animal's neck. "You feel it."
Sleipnir flicked his ears toward the south and east, where the Appalachian ridges waited beyond the visible horizon.
A few workers had paused near the supply barn to watch. Some of them had seen this before. Others had not, and their expressions held the particular quality of people encountering something that their existing categories were insufficient to contain.
Billy Jack leaned on the railing near the gate with his arms folded and a faint smile that held the ease of a man for whom the extraordinary had long since become familiar. "Always liked that horse," he said, to no one in particular.
Olaf glanced once toward the Great Tree, its upper branches catching the morning light far above the rooftops. Then he put his foot in the stirrup and mounted in the smooth unhurried way of someone who had been doing this for longer than most things had existed.
"Come," he said.
Sleipnir gathered himself and leapt. The eight hooves struck the ground together once — twice — and then the horse simply ran upward, his stride carrying him into the air as naturally as another horse might crest a hill, and the valley dropped away beneath them.
Sanctuary shrank quickly below — the walls, the towers, the Great Tree rising above everything, the morning activity of the compound becoming a pattern of small movements within the larger shape of the place — and then the forest closed over it and it became just another clearing among endless trees, and the trees themselves became the texture of the hills, and the hills became the landscape.
Wind rushed past Olaf's cloak. Cloud shadows rolled across the ridges below. Sleipnir ran faster, his eight legs working in the particular rhythm that covered ground no ordinary horse could cover, and the long spine of the Appalachians rose ahead of them across the eastern horizon.
Olaf guided the horse toward the ridgelines, following the high country south where the mountains were oldest and the forests thickest. Miles of untouched wilderness passed beneath them. Old mountains, older than the gods who were currently flying above them. Older than most of the stories that had been told about them.
Somewhere in those forests, two guardians were already at work.
Sleipnir descended along a high ridge where the forest opened onto rocky slopes and wind-bent pines, the exposed stone grey and lichened, snowmelt running quietly through the cracks between rocks and gathering in small clear pools before finding its way downhill.
Ullr was already waiting at the cliff's edge. He stood with his bow resting lightly in one hand, not drawn, not set aside — simply held the way a hunter held a bow when he was not hunting but had not decided to stop being a hunter. He watched Olaf dismount with the still, evaluating attention of someone who had been alone in wild country long enough that the arrival of another person was something to be fully assessed before anything else.
Freyr stepped out from the treeline a moment later, brushing dark soil from his palms with the unhurried manner of someone who had been working rather than waiting. He looked older than the last time Olaf had seen him — not in years but in the way long effort aged a face, the kind of tiredness that came from sustained work rather than hardship.
Olaf looked at them both. Then at the valleys below, where three river systems wound between the ridges carrying their invisible cargo southward. "The rivers are wrong," he said.
Freyr's expression darkened. "We have noticed. The fish are behaving strangely in the lower reaches — schooling in the shallows, avoiding the deep channels. The deer won't drink from certain crossings."
Ullr nodded toward the valley below them. "Hunters missing near water. Three in the last two weeks. No bodies recovered."
"That will continue if it isn't addressed," Olaf said. He turned to look at Ullr directly, and something shifted in his expression — foresight flashed and the strategic focus softening slightly into something more personal. "Before we discuss the rivers — Ullr. Is there something you want to ask me?"
Ullr was quiet for a moment. The wind moved through the pines above them. He looked at the valley below and then back at Olaf. "Sif," he said. "Is she found?"
"Yes," Olaf said. "She is with Thor. They are in Arizona together — at the place where this thing in the rivers started."
Ullr absorbed that. "Thor is awake."
"Yes."
"And he is not attacking AN directly." It was not quite a question — more a statement held up for confirmation, because the answer seemed unlikely given everything Ullr knew about Thor.
Olaf almost smiled. "The roofer made him promise. And Thor respects him enough to hold it."
Ullr stared at him. "Thor is listening when someone tells him no?" He paused. "I have to meet this man."
"He is my grandson," Olaf said. "So you will."
Ullr looked at Freyr briefly, then back at Olaf with the expression of someone recalibrating several assumptions at once. "How long have they been awake? Thor and Sif."
"A month, perhaps two. They woke in the middle of a battle and came flying out into the middle of it." Olaf paused. "Sharon — Sif — was fourteen when she came to Sanctuary. She was with Loki and manipulated into thinking she was his daughter."
Ullr was quiet for a moment. "Fourteen," he said. The word had a particular weight to it — not distress, but the careful handling of something strange. His mother, younger than him. Unawakened. Raised by the Trickster in a suburban house.
"She is herself," Olaf said. "Fully awake now. She has been aging fast since awakening. She looks to be in her early twenties now. Thor the same. The divine aging runs ahead of the mortal body when it is not managed. She is Sharp. She held Thor to his promise when he wanted to break it. She is very much Sif."
Ullr nodded slowly. That, apparently, was sufficient. "The roofer and Freya recovered her?"
"Yes. Thor's belt and gloves as well. Loki had taken them before the original fall."
Ullr looked at the sky for a moment, processing the full picture of it. "He recovered Sif, made Thor promise not to go after AN, has Freya's trust, and took the belt and gloves from Loki." He looked at Olaf. "I need to meet this man."
"You said that," Olaf said.
"I mean it more now."
Freyr had been listening with the quiet patience he brought to most things. "When this is done," he said simply.
Ullr looked back at the valley below, and the hunter's attention settled back into place over the more personal thing that had been briefly visible. "Refugees are already moving through the mountain roads," he said. "The earthquake pushed people east and north. They are following the passes."
Olaf nodded. "That flow will increase significantly over the coming weeks."
Freyr folded his arms. "We can grow food in the valleys between the ridges — I have been working the soil since I arrived here and the land responds. But if the rivers become unsafe, the roads will fill with people moving away from the water rather than toward it. The passes cannot handle that volume."
Ullr studied the forest. "The mountains may have to shelter more people than they have sheltered in a very long time."
"Yes," Olaf said. "The forests may become sanctuaries in their own right before this is finished."
The wind shifted across the ridge. Something in the treeline noticed the change in conversation — a quality of attention from the forest that was distinct from the ordinary attention of wind and birds and the small movements of animals going about their lives. Ullr tilted his head slightly, reading it. "They are listening."
The trees moved. Not with wind — with intention, a slow deliberate shifting of presence from shadow into something more visible. Three shapes stepped from the forest, not quite solid and not quite absent, existing in the particular way of things that had always been here and were simply choosing to be seen.
The Nunnehi. Mountain guardians who had held these ridges since before the first human path was worn through the passes.
One of them spoke, the voice carrying the quality of leaves shifting across stone. "The rivers carry sickness."
Freyr nodded. "Yes."
The spirit's attention moved to Olaf with the particular assessment of something ancient meeting something equally ancient. "This sickness is not born from the land."
"No," Olaf agreed.
"Nor from spirit."
"No."
Ullr said quietly, "Nor from any beast that has walked these forests."
The Nunnehi looked toward the distant river valleys below. "This thing disturbs the balance in a way that does not belong to any system we know. It did not come from here."
"It came from human hands," Olaf said. "An experiment. A compound that rewrote what it infected. It entered the water through the carelessness of collapse, and the water carried it."
The spirits were quiet with this for a moment. Then one of them said, "You have already spoken with the serpent."
Olaf did not react with surprise. "Yes. Uktena felt the imbalance in the deep water before we had confirmed it above. The serpent is watching the underground channels."
The Nunnehi murmured among themselves in a register just below hearing. Then: "Can these things be healed? Returned to what they were?"
"Possibly," Olaf said. "There is someone working toward that answer. The knowledge is not complete yet but the path toward it exists."
Freyr looked at him carefully. "And if the cure fails? If the answer comes too late or not at all?"
Olaf looked out across the mountains, the long blue ridges receding into haze, the river valleys between them carrying their invisible problem southward. "Then the rivers will need cleansing," he said. His voice remained even. It was not a statement made with pleasure or with reluctance — simply with the accuracy of someone who had made hard assessments for a very long time and had learned not to decorate them.
The Nunnehi did not flinch from it. They understood the mathematics of balance. "Then we will help," one of them said. "We know the hidden paths through these mountains — ways that bypass the river crossings entirely. We can guide the refugees along routes the sickness has not reached."
Freyr relaxed slightly. "That helps enormously."
"We can also work against the spread," another spirit said. "Collapse the tunnel routes the creatures are using to move between river systems. Seal the cave passages where the water pools. Make the mountain corridors narrow enough that large numbers cannot pass through unseen."
Ullr nodded slowly. "Buy time."
"Yes," the spirit said.
Olaf placed one hand on Sleipnir's neck. The horse was still, watching the forest with the calm attention of an animal that had stood in the presence of divine things long enough to simply observe them. "Prepare the mountains," Olaf said to Freyr and Ullr. "The refugees will come in greater numbers than you expect, and they will arrive faster than the roads suggest they should. The earthquake broke more than buildings."
Freyr turned toward the valleys where distant smoke from small settlements drifted into the pale sky. "We will be ready for them."
"And keep watch on the river mouths," Olaf added. "I want to know when the movement pattern changes — when these things stop being scattered and start moving in coordination. That shift will matter."
Ullr looked at him sharply. "You think they will coordinate."
"I think whatever made them was not random," Olaf said. "And things that are not random tend to develop purpose."
The Nunnehi had begun fading back toward the treeline, their presence becoming less defined as they moved into the shadow, until they were simply the forest again — present in a different register. But the quality of attention in the trees was not the same as it had been when Olaf arrived. The mountains were awake now in a way they had not been an hour ago. Watching the passes. Watching the rivers.
Ullr looked at Olaf one more time before he turned back to his ridge. "Tell Sif — " he started, then stopped. He was quiet for a moment. "Tell her the mountains know she is well. She will understand."
Olaf nodded. He would tell her.
He mounted Sleipnir, and the horse gathered himself against the earth, and they went back up into the sky above the old mountains while the wind moved through the pines below and the rivers in the valleys carried their quiet, patient problem deeper into the eastern wilderness.