The checkpoint guards had the specific posture of people who had been doing the same job long enough that the job had become a character trait rather than a role.
The lead guard tapped the driver window with his gauntlet and ran the standard visual assessment of the vehicle's interior — the quality of the gear, the mana signatures in the back compartment, the general calculation of how much this particular load of travellers could be made to pay over the actual entry fee before they'd decide the argument wasn't worth it.
"Armoured transport classification," he said. "Entry toll is five hundred credits. Structural inspection fee, two hundred more. Upfront."
The entry fee for foreign nationals arriving at the Iron Citadel's civilian checkpoint was documented in the Valerian foreign affairs office at fifty scrips for a standard vehicle, one hundred and twenty for a military-class transport. He had read the documentation on the transit.
He ran the Fate's Eye across the guard while he reached for his watch.
The specific anomaly he found in the guard's mana meridians was not something he had expected to find here.
He looked at the guard on the left. Then the guard on the right. Then the squad at the garrison booth.
He paid the toll — five hundred and two hundred, no discussion, the payment terminal accepting the transaction with the flat efficiency of a system that had processed many such transactions — and drove through when the gates opened.
He needed a moment to process what the Fate's Eye had shown him.
The corruption's signature in the checkpoint guards' mana meridians was not identical to what he had read in Saylor Vane. It was related. The structural architecture was the same class of thing — a parasitic mana formation anchored to the host's own channels, drawing from the host's natural mana output and feeding back a distorted signal that amplified specific behavioural tendencies. In Saylor's case, the tendency it had amplified was grief and isolation. In the checkpoint guards, the tendency it was amplifying was the greed that any position of petty administrative power could develop, given the right environmental pressure.
The same class of formation. Different environmental context producing different symptom expression.
He looked at the guard rotation through the rearview as he drove.
Every guard he had seen at the checkpoint carried the same signature.
Not one or two. All of them.
That was not natural development. Natural development of the kind of corruption he had seen in Saylor required a specific pathway: a practitioner in a vulnerable state, the dark taking advantage of an opening. Natural development was individual, slow, idiosyncratic. This was uniform — the same structure, the same maturation stage, across an entire installation.
Someone had introduced it deliberately.
He filed this with the specific weight it deserved and drove deeper into the Citadel.
The Iron Citadel resolved from the checkpoint as a genuinely different kind of urban environment from anything he had worked in before.
Not worse than the Forbidden Forest or the Tier 4 portals — different in the specific way that human-made environments were different from natural ones. The foundries were working at full capacity, the smoke from the lower-ring stacks producing the perpetual artificial twilight the briefing data had mentioned but which was considerably more present in person than in description. The sky-bridges connecting the upper districts were engineering worth studying. The crowd density in the lower districts was the density of a city whose population had grown faster than its infrastructure.
He found the estate the guild's advance arrangements had secured — a private compound in the industrial district, sufficient mana-shielding for privacy, the specific location that was close enough to both the commercial hub and the embassy district to serve multiple intelligence-gathering needs simultaneously.
He briefed the team in the estate's main room.
"We deploy separately," he said. "The goal is a complete picture of what's actually happening in this city before we make any formal contact with the Dominion's administrative structures. I want to know what the factions are, what they want, what the civilian population thinks of the mining sector situation, and — this is now primary — whether the corruption pattern I observed at the checkpoint is present throughout the city or localised to specific installations."
He looked at them. They had not been told about the corruption observation yet, so he explained it: the Fate's Eye's read, the similarity to the Saylor signature, the uniformity across the guard rotation, the implication of deliberate introduction.
Rosanne's expression was the one she used for things that had significant operational implications and she was filing them correctly.
"The Saylor extraction methodology," she said. "Does it work at scale?"
"I don't know yet," he said. "That's part of what I need to understand before we can make any promises to the Dominion's leadership about what we can offer them." He looked at the group. "For now: intelligence. I want the corruption's distribution pattern, the likely vectors of introduction, and what the city's political structure looks like in the context of a potentially systemic infection."
He assigned sectors: Rosanne and Jessica to the commercial district and the high-traffic civilian areas; Mika and Donna to the lower districts, where the population density and the mine workers' quarters would give the clearest picture of how deep the corruption ran through the general population.
He took the embassy district and the culinary sectors adjacent to the administrative compound, which were the spaces where the Dominion's institutional class conducted the informal business that informed the formal kind.
"Reconvene here at midnight. Bring everything you observed. We don't act until we have the picture."
The Iron Citadel's streets absorbed him without difficulty.
He was not invisible — he was not using any technique that required sustained mana expenditure, and the spatial fold was reserved for situations where visibility would produce an actual operational problem rather than for general convenience. He was simply a well-dressed foreign practitioner in a city that had a significant foreign practitioner population, which made him unremarkable by the standard that mattered.
The Fate's Eye ran continuously.
By the time he reached the embassy district, he had read forty-three practitioners in the crowd. The corruption signature appeared in nineteen of them, distributed across what appeared to be, at first assessment, no particular demographic pattern — mixed tiers, mixed occupations, mixed apparent social positions.
The only common factor the Fate's Eye could identify was not demographic.
It was geographical.
The corrupted practitioners had all, in the past week by the corruption's staging, been in the southern quarter of the city. He could read the staging from the infection's maturation level — the specific development stage that the corrupted mana formation occupied corresponded to the timeline of exposure.
Someone or something in the southern quarter was producing and distributing the corruption.
He turned his walk south.
The culinary district adjacent to the administrative compound could wait.
He had a more specific problem to locate first.