Fifty mana bought him two feet of tunnel, four hours of recovery bought the fifty mana back, and every room ran north of two hundred depending on how the bedrock felt about being rearranged—the bedrock had opinions about everything, none of them helpful. Call it sixteen to twenty hours of regeneration per room, more if the stone was being difficult, plus connecting tunnel adding another forty hours on top of that.
Roughly three days per room, assuming nothing went wrong, and things went wrong regularly.
The fourth room took him three days and change—a seam of harder rock halfway through the eastern wall that refused clean manipulation and had to be worked around, costing him half a cycle of mana and adding a dog-leg to the tunnel approach that his warrior-mind immediately began planning around. Anything moving fast through that tunnel would have to slow for the bend, and anything that slowed was easier to hit.
I can use what the ground gives me. The same thought he'd had about the junction in the third room, the same way he'd once used a river's oxbow to funnel a Saxon patrol into a killing ground they hadn't seen coming until they were already in it.
He summoned the second Varangur the moment the fourth room settled into claimed space—not because the instincts demanded it, though they did, but because he'd worked through it during one of the longer recovery cycles and landed at the same answer the dungeon-brain had already reached.
He'd asked himself: stack all five at the entrance, shoulder to shoulder, and anything that came down that tunnel would die before it reached the second room. Hard wall, maximum force, done.
The dungeon-brain answered before he'd finished asking: because a wall that stopped everything taught the enemy exactly where the wall was, and enemies who knew where the wall was went around it, or came back with more men, or found another way in. One warrior per room, each one harder than the last—that bled them the whole way down, and anything that reached his core had already paid for the privilege three times over.
Obviously, the dungeon-brain said, with the smugness of something that had known the answer before the question formed.
Gunnar ignored it and summoned Brak.
*
The second Varangur arrived the same way Thyrnax had—cold blue light gathering in the center of the room, condensing into mass and then simply being there, already on one knee before the light faded. Broader than Thyrnax, the tattoos on his chest denser, a scar splitting his beard down the middle where someone had tried to divide him and hadn't committed to it.
"I am Brak. I am bound."
"Stand," Gunnar said. "Fourth room, tunnel at your back leads toward the surface. Thyrnax commands in my name—his word is mine."
Brak rose, looked at the tunnel entrance, then at the room's dimensions. "Forty feet across."
"Roughly."
"The entrance tunnel is narrower." He walked it, one hand trailing the wall, then came back and stood in the center of the room and looked at the ceiling. "Low."
"Eight feet."
"I've fought in worse." He said it without pride, without complaint—the tone of a man recording a fact for later use—then moved to the center of the room and settled his weight. After a moment, unprompted: "The scar on my jaw. Frost giant. Very small one."
Gunnar waited.
"Still counts," Brak said.
He went back to his position and that was apparently all the introduction Brak intended to give.
I can get used to these people.
He went back to digging.
*
Days blurred together, maybe a week, marked only by the rhythm of spending mana and waiting for it to return. He'd lost count somewhere around the fourth cycle.
The fifth room he built bigger—fifty feet across, ceiling climbing to twelve—because greatswords needed extension to be worth anything, and a cramped room turned his best fighters into men with expensive clubs. The extra space cost him an additional cycle and pushed the room from three days to nearly four, the bedrock denser the deeper he went, resisting him the way old stone resisted everything: not with hostility but with the inertia of something that had never been asked to become anything else.
He asked it anyway.
The fifth room's Varangur was a woman named Varra, and she walked both tunnel openings before she said anything, measuring distances the way Gunnar had measured Saxon formations from the back of the shield wall. She touched the ceiling at its highest point, twelve feet up, running her fingers along where stone met stone.
"You cut this room larger than the others."
"You'll need the space."
She looked at the dome, and her expression recalibrated. "The others are stationed progressively closer to the surface."
"They are."
"So the challenge increases the deeper they go." Flat, a commander's logic confirming itself. She took her position in the junction between the two tunnel openings where she could cover both approaches—she'd arrived at the same defensive instinct he'd have chosen without being told. Then, after a pause long enough to be deliberate: "I count four Varangur assigned before me."
"You count right."
"All male."
"The binding sends what I summon, and I summon what it offers."
Her chin lifted by a fraction. "Then it has good taste." She turned back to her tunnel and added, without inflection: "I am also better than all of them. I want that noted."
Gunnar filed it. Sharp. And knows it.
*
Thyrnax moved him after the fifth room finished.
He announced it the way a surgeon announced an amputation—direct, no softening, because softening was for men who thought the truth needed cushioning. "The core should be in the fifth room now, Thane. More stone between it and the entrance."
Gunnar registered the logic and hated every part of it. "Do it."
Through the tunnels, he felt Brak and Varra moving to the entrance passage, weight doubling at the chokepoint the way a crew battened down before a storm—efficient, no waste, everyone knowing their role before it was assigned. Then Thyrnax lifted his crystal, and Gunnar felt the disconnection the same way he'd felt the sword punch through his lung in the Saxon mud: sudden and total and wrong in a way that bypassed thought entirely and went straight to something older.
Three steps of void.
He came back into the stone of the fifth room with his awareness snapping into place like a blade finding its sheath, and said nothing, and Thyrnax said nothing, and that was the arrangement.
He went back to shaping the sixth room.
*
The sixth room took four days—denser rock, a vein of harder material running diagonally through the eastern face that had to be worked around rather than through, adding an asymmetry his dungeon-brain immediately converted into a defensive feature. The room ended up sixty feet across at its widest, ceiling at fourteen, large enough that two men could fight at full extension in the center without touching the walls.
The fourth Varangur arrived and gave his name as Drevak, and he was young in the way Gunnar had learned to read young—a tightness across the shoulders that spoke of energy with nowhere to go yet, a quickness to his eyes still looking for permission before it became confidence. He had fewer tattoos than the others, the marks on his chest still sparse, the record of a man whose history was mostly ahead of him.
He looked at the room and said, "This is larger than I expected."
"You'll fill it," Gunnar said—a promise or a threat, depending on how Drevak chose to carry it.
Drevak nodded, then paced the room twice in a circuit, burning off that restless energy in the only way available to a man in a stone box with nothing to fight yet. On the second pass he stopped and looked at the dome. "The others—can I speak to them?"
"Through the tunnels, yes."
"Good." He started his third circuit and stopped himself, clearly deciding the pacing was something he should stop doing in front of the thane. He planted his feet in the center of the room and stood at something approximating stillness, which was less convincing than he intended. "I have a lot of questions."
"Save them."
"Right." A beat. "Can I ask one."
Gunnar waited.
"How many are we going to be."
"As many as I can summon before the war comes."
Drevak turned that over. His jaw worked once, and then he nodded and went to his post and did not ask the next question, which Gunnar gave him credit for.
*
Thyrnax moved him again after the sixth room, and the void lasted three steps and felt exactly as wrong as it had the first time, and Gunnar came back into the stone with his awareness snapping into place and said nothing, and Thyrnax said nothing, and that was still the arrangement.
The seventh room took four and a half days—seventy feet across, ceiling at fifteen, the bedrock this deep ancient in a way he could feel, stone that had been sitting in the dark since before his grandfather's grandfather learned to walk, resisting him with the weight of centuries of being left alone. He asked it anyway.
The fifth Varangur arrived in the seventh room and gave his name as Sket, and he was the quietest of them by a margin wide enough to be its own category. He answered Gunnar's questions in the fewest possible words, took his post with the air of a man who'd been waiting for exactly this assignment, and settled into a stillness so complete that Gunnar occasionally lost track of him against the stone.
After maybe an hour of silence, Gunnar said, "You have no questions."
Sket looked at the dome. "No."
"Nothing you want to know."
"I know what I need to know." A pause. "If something changes, I will ask."
Gunnar waited to see if there was more. There wasn't. He turned his attention back to the stone and started planning the eighth room, and after another hour he became aware that Sket had moved—not to a new post, just shifted weight—and had been watching him work the whole time with the quiet attention of a man who found the process interesting and saw no reason to say so.
Unnerving, that one. Or would be, if Gunnar still had nerves.
*
He checked the count: five Varangur spread across seven rooms, each one positioned deeper than the last, Thyrnax at the innermost point between the core and anything that might reach it. Two and a half weeks since awakening, give or take, and his hird numbered five.
Five warriors—he corrected himself reflexively because Varra had already demonstrated she'd make someone regret the other word—bound to him by the binding the same way his crew had been bound by choice and silver and the loyalty that grew between men who'd bled together. Except these hadn't bled yet, and he hadn't earned the loyalty so much as inherited it, and there was something about that which sat sideways in him. A jarl's instinct. Loyalty given for free was worth exactly what you paid for it.
Build them. Not the dungeon-brain this time—something older. You have raw material. Do your job.
He went back to shaping the eighth room.
*
The sparring started on the third day after Sket arrived, and it started the way all the best fights started—with an observation that was also an invitation.
Gunnar felt Thyrnax moving through the tunnels before the man had fully committed to going anywhere, tracking the weight of his heaviest warrior's stride against the stone. He passed Sket's room, passed Drevak, passed Varra in her junction, and kept going until he reached Brak at the fourth room post, where Brak had been standing watch over the same tunnel for the better part of a week.
"You're getting slow," Thyrnax said.
Brak turned with the unhurried movement of a man who had been expecting company. "You may be the oldest of us, but you do not command us."
"Let's find out."
A pause, and then Brak rolled his neck until something cracked loud enough that Gunnar felt it through the floor. "Seventh room. You'll want the space."
They walked back through the dungeon together, and Gunnar tracked them by weight and rhythm, each man's footfall distinct enough to read if you'd been paying attention long enough. Varra watched them pass from her junction without comment. Drevak watched them from the tunnel entrance with the specific restraint of a young man who wanted to follow and had decided, for now, not to—though Gunnar gave that decision about two days before it stopped holding.
In the seventh room, with no acknowledgment that the thane of the hall was three feet away watching, they set up across from each other and Thyrnax came at Brak without ceremony—a straight drive into close range, the kind of opening that said I am not afraid of you and I want you to know it immediately, and Brak met it with a forearm block that redirected into a grab that got him two inches of leverage before Thyrnax broke it and answered with an elbow that snapped Brak's head sideways.
Brak shook it off and grinned, and they went again.
Gunnar had watched men fight his whole life—real fighting, the kind that taught you things because the alternative was dying ignorant. His father had run his training the same way, hard lessons without apology, and he'd passed it on to Bjorn, to Kjartan, to every man who'd come up under him. What the Varangur did in his seventh room was that principle at its conclusion: pain as currency, spent in training so it didn't have to be spent in blood.
The difference was that his old crew had complained about it. They'd cursed and argued and accused each other of cheating and invented creative oaths for every bruise, and Gunnar had learned to tell the difference between a man who was genuinely hurt and a man who'd just discovered his elbow had feelings. It had been loud and chaotic and occasionally required him to separate people before someone did something permanent.
The Varangur were efficient. Technically immaculate. About as entertaining as watching two millstones grind against each other.
Brak took a headbutt that rocked him back a full step and answered with a gut shot that bent Thyrnax forward at the waist, and Thyrnax came up out of it with a grab that walked Brak sideways into the wall face-first. The sound of it—skull against stone—made Drevak wince from the tunnel entrance where he'd appeared, drawn the way young warriors always were.
Brak peeled himself off the wall, touched his forehead, checked his fingers, found blood. "Your left," he said, indicating where the opening had been.
"I know," Thyrnax said, wiping his lip. "You're leaving your center."
"I know." Brak settled back into his stance and they went again.
Varra appeared in the tunnel entrance sometime during the third exchange, arms crossed, watching.
"Brak's footwork," she said, when they separated to breathe.
"I see it," Thyrnax said.
"You let him plant twice."
"I was managing other problems."
"You were lazy." A correction, no heat—the tone of someone who considered precision worth enforcing. "He plants, he generates power. You let him plant, you eat the power."
Brak, breathing hard: "I'm standing right here."
"We know," Thyrnax said.
Varra pushed off the wall and walked back to her post. Brak watched her go, then looked at where she'd been standing, then looked at Thyrnax.
"Does she do that to you often," he said.
"Every time," Thyrnax said—not complaint, not admiration, something in between, the flat tone of a man who'd already stopped finding it surprising and hadn't yet decided what to replace that with.
Brak grunted. They went again.
Capable, Gunnar thought, watching them reset. Every one of them. And about as lively as the rock they're standing in. His old crew would have been three jokes deep by now, two of them bad and one of them worse. Bjorn would have called the headbutt a love tap. Halvar would have started a bet on how many rounds before someone lost a tooth.
These five might fight a war for him without anyone ever learning anyone else's name.
*
Drevak challenged Varra on the second day after that, and Gunnar had been expecting it.
He felt Drevak moving through the tunnels with that restless energy finally finding a direction, tracked him to the junction room where Varra had been stationed since her summoning. She was waiting when he arrived, which meant she'd felt him coming too, which meant the conversation that followed was less a challenge and more a formality both of them had already agreed to.
"Your technique," Drevak said.
"What about it."
"I want to test it."
Varra looked him over. "You've been standing in a box for eight days."
"So have you."
A pause. Her chin lifted by a fraction. "Sixth room."
In the sixth room, with Sket watching from the far wall, Drevak came at Varra with the speed Gunnar had clocked from the first moment—quick and committed, burning that excess energy like he had more than he knew what to do with. Varra moved sideways and used the angle and the tunnel wall together, turning his momentum into his problem. He hit the wall shoulder-first, recovered faster than Gunnar expected, and came back immediately—adjusted, reading what she'd done.
She hit him in the ribs hard enough that the impact registered through the stone floor.
Drevak went down on one knee and stayed there for a count of three while his lungs remembered their purpose. Then he looked up at her and said, "Again."
She hit him twice more before he found the counter, and he found it the way young fighters always did—on the ground, working through it with the part of his mind that kept functioning after the rest had been knocked sideways. When he came back up he'd changed his approach entirely, and when he caught her elbow on the redirect and took her off balance, she went down sideways.
They looked at each other from the floor.
"Where did that come from?" Varra said.
"The ground," Drevak said. "I had time to think."
She held out a hand, and when he took it she held the grip a half-second longer than necessary—the Varangur version of a nod between fighters who'd learned something about each other. Then she got up, brushed herself off, and said, "Again," and Drevak's face did something complicated before settling into something that might eventually become a grin if he practiced it enough.
Sket, from the wall, without inflection: "His footwork is still bad."
"I know," Drevak said.
"Yours is worse," Varra told Sket.
"I know." Sket watched Drevak roll his shoulder, testing the joint, then added: "You lead with the same shoulder every time you rush. I've been watching. Varra noticed after the second exchange. I noticed after the first."
Drevak turned and stared at him. "You could have said something."
"You learn faster when you find it yourself."
A long pause, during which Drevak visibly decided whether to be grateful or annoyed, then settled somewhere in the middle. "That's a very irritating way to help someone."
Sket considered this. "Yes," he said, with the serenity of a man who had already accepted that about himself and moved on.
*
Gunnar held still in the sixth room and listened to his halls.
Thyrnax in the seventh room, weight settled into the stillness of the last door. Brak in the fourth room, footsteps resuming their patient circuit. Varra back in her junction. Drevak walking back through the tunnel with a looser stride than he'd left with, the tightness across his shoulders finally starting to ease. Sket in the sixth room, quiet as the stone itself, watching Gunnar work the wall and apparently finding it worth watching.
Five warriors. Capable. Efficient. Oath-bound, which meant loyal in the way a good blade was loyal—it did what you asked until it broke, without complaint, without opinions about the man holding it.
His old crew had been nothing like that. Bjorn had opinions about everything, delivered them loudly and without invitation, and was usually wrong about half of them. Kjartan had never learned to make a joke but kept trying anyway, which was its own kind of bravery. Erik's stories about the voyage to Frankia had grown with every retelling until the sea creature he'd spotted off the stern had gone from a large fish to something that would have embarrassed a skald to describe. They were loud and difficult and opinionated and they'd bled for him for thirty years, and he'd known every one of them well enough to tell their footstep from another man's in the dark.
He knew his five by weight and stride already, because knowing your crew by how they moved was basic sense, not sentiment. But he didn't know them yet—and they didn't know themselves yet, locked in stone boxes with nothing to do but stand watch and spar, no history between them except a handful of training bouts and the shared fact of this dungeon that had called them into being.
Build them, the old instinct said—not the dungeon-brain, something older, something that had survived the shield wall and the void and the stone and was still running the same calculation it had run since he was seventeen years old with six men and a small boat. You have raw material. Do your job.
He turned his attention to the eighth room and started digging, and behind him he could feel Sket watching, patient as the dark itself, waiting to see what came next.