The underground had its own intelligence network, and Leylin had spent five years learning to read it.
Most of what he understood about Azjol-Nerub came not from any direct exploration of the kingdom — he had been into the upper reaches twice, careful, deliberately limited excursions that had taught him the shape of the place without committing him to the considerable danger of going deeper — but from the way the surface registered what happened below.
Earthquakes that were not earthquakes. Vibrations moving through the permafrost in patterns that had nothing to do with weather or glacial movement.
The specific quality of the ground's substrate communication that his earthbending maintained telling him, when he paid careful attention, that something large and organized was moving through the rock beneath his feet in ways that had purposes behind them.
The nerubian undead had been busy down there, across all five years. He had tracked their activity as best as his monitoring network could manage it, which was imperfectly — the underground was not his native intelligence environment, and the Scourge's necromantic saturation of the kingdom's deep reaches produced a kind of magical noise that made precise reading difficult.
But imperfect intelligence was still intelligence, and what he had assembled over five years was enough to understand the broad shape of what Azjol-Nerub had become.
What he had not fully understood, until the reports started arriving in the early weeks of the campaign, was what was still alive in it. The first indication came from Arcturis.
The spirit bear had been ranging through the Dragonblight region with the usual combination of physical presence and the broader, stranger awareness that his nature permitted, and had returned one morning with a quality that Leylin had learned, over years of their bond, to read as the specific communication of something significant encountered at the edges of the bear's ranging.
Not danger in the immediate sense — Arcturis's communication of immediate danger had a sharper, more urgent quality than this. Something more like discovery. Something that warranted attention rather than response.
He had followed the sense of it to a specific section of Dragonblight where the ground above Azjol-Nerub's eastern reaches was thinner than elsewhere — a place he had identified years earlier as one of the points where the upper kingdom most nearly approached the surface. He had stood there, extended his earthbending awareness downward with the careful, patient attention that the substrate required, and had found something he had not expected.
Living nerubians. Not many. The quality of what he was reading through the substrate suggested a small group rather than a significant population — the careful movement of beings who had been surviving in a very hostile environment for a very long time and who had developed the particular, compressed efficiency of things that had long since accepted that they could not afford to waste anything, including movement.
They were in very deep, and they were cautious, and they were alive in the defiant sense of things that had survived a war specifically designed to kill them.
He had sent a message south about it immediately, and had spent the following week building the most complete picture he could of who they were and what they were doing, before the Horde and Alliance intelligence operations got there first.
The Azjol-anak, it turned out, had been fighting their own war the entire time. This arrived through the combined reports of Roanauk's network, Aminel's channel communications, and the fragmented accounts of Horde and Alliance scouts who had made initial contact and had come back from those contacts with the particular quality of people who had gone underground expecting to find only enemies and had found something considerably more complicated than that.
The living nerubians had survived the War of the Spider — the Lich King's systematic campaign to destroy the nerubian kingdom and raise its dead in his service — through the desperate combination of numbers too small to notice and a knowledge of their own underground that had allowed them to stay ahead of whatever was looking for them.
They were not numerous. They were extraordinarily capable. And they had been watching the undead nerubians who now served Anub'arak with the accumulated fury of people watching the dead wearing the faces of everyone they had lost.
What they wanted from the arriving Alliance and Horde forces was not rescue. They wanted partners in a war they had already been fighting.
The specific distinction mattered, and the early accounts suggested that the forces who had made contact understood this — the Azjol-anak's initial interactions with both Horde and Alliance had the quality of negotiations between capable parties rather than the rescue of a desperate remnant. The living nerubians knew their kingdom's premises in ways that no amount of external scouting could replicate.
They knew where the undead concentrations were thinnest and where they were overwhelming. They knew the internal architecture of Azjol-Nerub in the way that people who had grown up in a place know it — not as maps, but as lived, embodied understanding.
The partnership that developed from the initial contacts was, by the accounts Leylin was assembling, genuinely functional rather than simply politically convenient.
Anub'arak's death arrived through Roanauk, who had received it through a Taunka contact embedded with the Horde forces operating in the Dragonblight-Azjol-Nerub border region.
Leylin sat with the information for a moment when it came. He had fought Anub'arak on Icecrown's glacier. He understood what Anub'arak was capable of in the operational sense of someone who had been on the receiving end of those capabilities and had walked away from it.
The fact that combined forces of the Alliance, the Horde, and the Azjol-anak had managed to bring down the crypt lord in the constrained environment of Azjol-Nerub itself — where Anub'arak's underground capability would have been significantly augmented compared to the glacier surface — was not a small thing.
It was, if he was being honest, impressive. He wrote as much in the intelligence summary he compiled, alongside the more practical assessment of what Anub'arak's death meant for the Scourge's control of the Spider Kingdom — the loss of the organizing intelligence that had been directing the undead nerubians' operations, the subsequent degradation in the coordination of Scourge activity in the eastern Dragonblight approaches, the cascading vulnerabilities that the loss of a major Scourge commander always produced in the forces that commander had been organizing.
He sent the summary south. Jaina would find it useful, and Turalyon's people operating in the Plaguelands would want to know how the pattern of Scourge collapse at command level translated across different operational theaters.
The Faceless Ones in Ahn'kahet were a different category of concern entirely. He had known about their presence in the deep kingdom — had flagged it in his monitoring records early in the second year when the substrate readings from the deepest reaches of Azjol-Nerub had started producing the wrong quality that he had first encountered at the Forgotten One's destruction beneath the glacier.
He had not had the ability to investigate further from the surface, and the two careful excursions he had made into the upper reaches had not taken him anywhere near the depths where the Faceless Ones apparently operated.
But the quality of the readings had told him enough to be concerned, and he had included the concern in every comprehensive intelligence summary he had sent south across five years, flagged with the careful emphasis he reserved for threats that were real and not yet urgent but that had a direction of travel toward urgent that needed to be monitored.
The reports about Ahn'kahet's clearance arrived through multiple channels simultaneously, which was itself an indication of the scale of what had occurred — things only generated that much simultaneous reporting when they were large enough that everyone who encountered them understood immediately that the encounter mattered.
The Faceless Ones had been operating in Ahn'kahet — the ancient section of the nerubian kingdom that predated even the nerubians' occupation of it, the Old God-adjacent horror of things that had been there since before the nerubians had arrived and that had been using Azjol-Nerub's deep space as a venue for whatever the Faceless Ones used deep, ancient spaces for.
The Azjol-anak had known about them. Had been managing the desperate balance of fighting the undead nerubians above and keeping the Faceless Ones contained below with the limited resources of a small surviving population that could not afford to fight two wars simultaneously without losing both.
The arrival of the Alliance and Horde forces had changed the equation. Combined operations into Ahn'kahet, guided by the Azjol-anak's knowledge of the kingdom's deep geography, had cleared the Faceless One presence with the costly thoroughness that clearing a Faceless One presence required.
The cost had been significant, by the accounts reaching him. The outcome had been necessary, and the necessity had been understood by everyone involved.
The eggs were the part that stayed with him.
After the clearance of Ahn'kahet, after the combined forces had pushed the Faceless Ones back into whatever depths the ancient aberrations retreated to when they encountered sufficient resistance, the Azjol-anak had revealed what the clearance had been protecting.
Vast stores of untouched nerubian eggs — the biological future of a people who had survived a genocide aimed specifically at preventing exactly this future from existing. Carefully maintained, specifically protected, the priority of a surviving population that had organized every other aspect of their survival around the preservation of these eggs.
The accounts described the moment of revelation with varying degrees of coherence, depending on who was doing the describing and how close they had been to it — the overwhelming quality of a thing that had been kept secret through years of desperate survival finally being shown to the people who had helped make its revelation safe.
Leylin thought about what it meant for a people to have survived something designed to end them, to have kept hidden the possibility of their continuation through years of that survival, and to be standing now on the other side of a war they had not chosen watching the first large cocoon of their future beginning to hatch.
He looked at the Blue Drake Egg in the corner of his settlement — maintained, cared for, developing with the patient, impossible timeline of something that had been entrusted to his care and that represented, in its own way, a future that was not yet visible.
He thought he understood something of what the Azjol-anak were feeling, even though what he understood was necessarily partial and translated across the significant distance of a completely different kind of life.
He sent a message to the Azjol-anak through the Horde contacts who had established functional communication with the surviving nerubians. The message was brief.
It expressed, in terms that he understood might translate imperfectly but that he sent regardless, what the Azjol-anak's survival meant in the larger accounting of what Northrend was and had been — that a people who had been intended for extinction and had refused it were something worth knowing about and worth helping, and that whatever assistance his capabilities and resources could provide toward the success of the hatching project was available if they wanted it.
He did not know if they would respond. The Azjol-anak's relationship to outside parties was, by every account, carefully managed — they had made the partnership with the Alliance and Horde on specific terms for different purposes, and the extension of that partnership to additional parties was not something they were likely to agree to lightly.
But the offer was genuine, and genuine offers deserved to be made regardless of whether they were accepted.
Arcturis settled beside him that evening, the spirit bear's enormous form producing its specific, ambient warmth against the cold that pressed in from every direction, and Leylin sat with the accumulated reports of the day and thought about underground kingdoms and surviving populations and the specific, stubborn refusal of things to end when they had been told they should.
The Azjol-anak had kept their eggs hidden for years through a war that should have ended them. He had watched an Ice from a settlement in Dragonblight for five years, monitoring a gamble that had no guarantee of resolving correctly.
There was something in both situations that felt, in the quiet of the evening, adjacent to the same thing.
He looked at the Blue Drake Egg in its corner, warm against all the cold, and thought about what hatching meant — not the biological event, but the larger thing it represented. The arrival of what had been developing in secret. The point at which hidden potential became visible, undeniable fact.
Northrend was full of things that had been developing quietly, beneath the surface, in the cold.