Ulduar's entrance did not look like a door. This was the first, immediate quality that distinguished it from every other significant structure Leylin had entered in his time in Northrend.
The citadel had looked like what it was, enormous and organized and built with the specific, architectural intention of communicating to anyone approaching it exactly what they were approaching.
Ulduar's outer face communicated nothing of the kind. It was simply the stone of the Storm Peaks, and then it was the massive quality of Titan construction that had been here for so long.
He walked through it. The interior hit differently from the exterior's approach.
What Ulduar's interior produced was a different quality entirely, and the difference took him a moment to locate accurately because it was not the quality he had been preparing for on the walk through the Storm Peaks.
It was the specific quality of something watching. Not with malevolence —something more patient than malevolence. The ambient awareness of something that had been here long enough to have developed a comprehensive understanding of the interior it occupied.
He stood inside Ulduar's entrance and felt the watching and noted it and moved into the interior. Rairakku's Mask was at his side — one of the system's earlier gifts, carried since the working that had rewarded it.
He called the Ninjakhan through it. The summoning was not dramatic. The Ninjakhan materialized from the mask's contained working with the immediate quality of things that had been ready before the calling, the three scouts arriving in the interior's dim Titan-lit space with the particular, compact efficiency of beings whose entire existence was organized around moving through contested space without being seen or heard or registered by what was in the space.
They were small. This was the first quality that anyone observing them would have noted. He gave them the interior's layout through the monitoring network's available data.
"Assess the inner chambers," he said. "Report the guardian positions, the corruption's visible expression at each position, and whether any approaches exist that the corruption is not covering with its current orientation." He paused. "Do not engage anything. You are reading, not fighting. If something registers you, withdraw immediately and return."
The Ninjakhan received this with the wordless quality of things for whom instruction and execution were essentially simultaneous — no deliberation, no acknowledgment, simply the immediate disappearance of beings who understood that visible presence was the beginning of the failure of their function. They were gone.
The interior remained what the interior was — vast and old and carrying within its specific, Titan-constructed geometry the organized quality of something that had been built with comprehensive purpose rather than the incremental, need-driven construction that most things were built with.
The Titans had planned Ulduar with the full understanding of what it was for, which meant every corridor and chamber and the relationship between them had been designed around the specific, functional requirements of indefinitely containing something that had been trying to get out since the moment of its imprisonment.
The design had worked for a very long time. It was not working now. Aminel had the relay active before they had crossed twenty meters into the interior.
The message from Jaina arrived while she was reading the initial interior coverage output. She read it with the focused, rapid attention that she brought to all significant incoming communications.
She looked at Leylin. "Jaina is assembling the force," she said. "Rhonin is leading the Kirin Tor's combat contingent personally — she made the case to the council that Ulduar required Rhonin's specific expertise rather than someone Rhonin would have to direct from a distance." She paused. "The council agreed. The Kirin Tor force departs Dalaran in four days."
"Four days," he said.
"She says she is also bringing Brann Bronzebeard," Aminel continued, reading the relay's output with the focused attention. "His firsthand knowledge of what the Titan constructs inside Ulduar look like before and after the corruption's expression is something she considered more valuable than the additional combat capability that any alternative to Brann would have represented."
"She's right," Leylin said. "Brann's knowledge of the titan structure is exactly what would help them."
"She also says—" Aminel stopped. He looked at her. "She also says that she spoke with Velen," Aminel said, and the quality of saying the name carried the weight that the name warranted.
"The Prophet of the Draenei is sending a contingent from the Exodar. She did not elaborate on what specifically they would contribute, but she said Velen's exact words were that 'this is the kind of problem that the Light must be present for before the problem remembers what the Light is.'"
The relay's output communicated Jaina's assessment of this as significant in the compact way of someone conveying that a thing they are reporting is more important than the words describing it might immediately suggest.
"Tell her we received the message," Leylin said. "Tell her four days is within the window." He paused. "Tell her not to bring people who dont understand what an Old God is. Tell her to bring people who have an iron will so that they can manage the corruption."
Aminel transmitted this with the compressed version of his meaning that Jaina's channel received most effectively. The relay acknowledged.
Alleria had been moving through the interior since the entrance conducting a survey — not a threat-assessment survey in the immediate, tactical sense, but the deeper, environmental survey of someone who was reading a place rather than simply occupying it.
Her gaze moved across the Titan construction with the focused, absorbing attention of someone encountering something that exceeded the categories she had been applying to it.
"It's extraordinary," she said, to no one in particular — or to Vereesa, who was beside her and who had been running a similar survey with the same quality of absorbed attention that suggested the sisters had both arrived at the same response through independent processes and were finding the shared response confirmed by the other's presence.
The Titan construction was extraordinary.
Not in the way of things built for beauty, not in the decorative quality that architecture employed when the architecture's purpose was to produce an aesthetic response in the observer.
In the way of things built for function at a scale where the function itself produced the quality that other approaches built for intentionally. Every surface communicated the total confidence of beings who understood what they were building and why, for whom the question of whether the construction would accomplish its purpose had been resolved before the construction began rather than hoped for after it concluded.
The stone was not ordinary stone. Vereesa ran her fingers along one wall with the exploratory quality of someone testing the material's character through direct contact.
"It's warm," she said. And then, after a moment of additional contact: "Barely. But warm. The stone is retaining something. Not heat, not the way ordinary stone retains the heat of a fire. Something else."
"Titan energy," Tyr'ganal said, from behind them. The scholar had been cataloguing the interior's features since the entrance with the methodical, comprehensive quality he brought to all significant environments, his assessment building in the systematic way of someone who would want, afterward, to have a complete record of what he had observed.
"The Titans did not simply build here. They invested in the construction at a level that left the material itself changed. What the stone retained after ten thousand years of the investment's accumulation is not the original energy but the trace of it — the residual quality of something that was once significantly more present than this."
"How much more present?" Alleria asked.
Tyr'ganal considered this with the honest accounting of a scholar who did not benefit from round numbers when precise ones were available.
"More than I can measure with current instruments," he said. "The baseline for comparison would need to be the original construction, and I do not have that baseline. What I can tell you is that what remains is significant, and that what remains is what the imprisonment's ten-thousand-year duration has left after whatever Yogg-Saron's influence has been consuming from the available energy the construction carried."
"It has been feeding on the prison," Alleria said.
"On the prison's power," Tyr'ganal said. "Yes. Which is the elegant horror of an Old God's imprisonment — the prison itself becomes the resource, the very thing that was meant to contain providing, over sufficient time, what allows the contained thing to grow."
This landed in the resonant quiet with the weight that accurate and uncomfortable observations landed with.
Alleria withdrew her hand from the wall and looked at what her touch had been resting against. Then she resumed the survey, because the survey was still the most useful thing she could be doing, and knowing what something was connected to was better information than not knowing.
Sylvanas had found the camp's location with immediate efficiency — the identification of the specific area that the group's immediate requirements could be met by.
"Here," she said, and the word was the entire instruction, because everyone present was capable of reading what here meant in context.
The position was a recessed area at the interior's first significant junction — a chamber-adjacent space that the Titan construction had produced as a byproduct of the complex's organizational geometry rather than as a designed feature, the accidental shelter of a space where three walls came together at angles that provided natural coverage from multiple approach directions while maintaining sightlines toward each of those directions.
Good ground. Not perfect — perfect ground did not exist in environments that had been organized around something trying to get out — but the best available approximation of what the group needed while the Ninjakhan were scouting and the reinforcements were four days away.
Liadrin was already establishing the camp's perimeter working — the Light-based marking that defined a space as the Light's in the territorial sense that the Light's presence communicated to things that were sensitive to the Light's nature.
Not a ward, not the complex, barrier-building working of a formal magical perimeter. The simpler, more fundamental expression of Light claiming a space, which was less structurally sophisticated and more immediately present than ward architecture.
Things that operated through corruption found this specific quality difficult to work in proximity to. Not impossible. Difficult.
"The ward will notify us if any corruption attempts to enter the perimeter," Liadrin said, which was both the description of what she was doing and the reassurance that it produced.
"It will also tell Yogg-Saron that we are here." Sylvanas said.
Liadrin paused. "We entered its prison, it already knows we are here."
Sylvanas accepted this considering the quality of someone running the logic and finding it sound even while the implications it produced were not uniformly comfortable.
She began setting the camp's physical organization alongside the ward's metaphysical one — the practical work of making the position sustainable for the days ahead, the equipment and supplies distributed in the organized, efficient manner of someone who had established temporary camps in hostile environments often enough that the efficiency was automatic rather than deliberate.
Tyr'ganal found his position at the camp's edge with the relay's external antenna configured toward the Storm Peaks' sky — the monitoring network's signal structure requiring the geometric orientation toward the established anchor points outside the complex, the interior's Titan construction interfering with the signal in the organized way of walls built to contain things that operated through the electromagnetic spectrum alongside every other channel.
He got it working. Not cleanly — the signal had the attenuated quality of communication through significant interference — but working, which was what was necessary.
Arcturis returned from the first forward range. The spirit bear's communication was the ambient quality of the bond rather than verbal report, arriving in the compressed way of significant information organized around the most immediately important elements rather than the complete detail that the most systematic account would have provided.
What the bond communicated was vast interior space, the wrong quality of guardian constructs whose orientation was the organized-toward quality that Aminel had flagged at the entrance — and something else.
The something else was the piece that the bear's ambient awareness had flagged as requiring immediate communication rather than waiting for the fuller return. There was something in the deep interior that was not a guardian construct.
Something that was alive, in the fragile way of something that had been in contact with a corrupting influence for an extended period and that was maintaining its own character against that influence with the effortful quality of something that had been doing so for longer than the effort could be comfortably sustained.
He read this and looked at Alleria, who had been watching his expression since Arcturis pressed against his side. "There is someone alive in there," he said.
Alleria's expression sharpened with the immediate recalibration — the shift from environmental survey to active assessment that the information required. "Guardian?" she asked.
"No," he said. "Something that doesn't belong to Ulduar. Something that was brought here or that found its way here and is maintaining itself against what the interior is doing to everything inside it." He paused, reading the bond's communication for the additional information it was still producing. "I don't know who. I know the quality of what is being maintained and the quality of the effort it is costing."
"How long?" Tyr'ganal asked. The scholar's analytical read of the situation producing the most immediately useful question — how long something had been in contact with the Old God's influence was the most significant variable in understanding what state it would be in when they found it.
"Long enough," Leylin said.
The camp's perimeter ward cast its quiet Light against the Titan construction's ancient stone. The monitoring relay produced its attenuated signal toward the exterior network's anchor points.
The Ninjakhan were somewhere in the deep interior, reading what the interior contained with the specific, comprehensive efficiency of beings built for exactly that.
Four days. Jaina and Rhonin and Brann and Velen's contingent, four days away. He sat in the camp's ward-light and looked at the interior's ancient dark and thought about what the Ninjakhan would bring back when they returned.
The others quickly helped set up the camp, Muradin being quite knowledgeable about blacksmithing repaired some of the stuff needed. Meanwhile Thrall, tried in his own way looking for some information that could help. Everyone in the camp contributed, while waiting for the the scouting reports and reinforcements.