The traitor's identity revealed itself through the accumulation of small details.
Evander had spent two days tracing information flows, mapping every point where operational intelligence could have leaked to Bishop Marcos. The ambush had required specific knowledge: the timing of his approach, the route he would take, the cover identity he would use. Only a handful of people had access to all three components.
Old Gregor was beyond suspicion. Three centuries of survival had taught him operational security that no amount of inducement could compromise.
Bones was literally incapable of betrayal. The binding that animated him included constraints against actions that would harm his master.
The three Masked servants who had conducted surveillance were corpses, their preserved minds unable to form the independent intentions that treachery required.
Which left the contact in the book trade. The man who had arranged Evander's introduction to collectors who dealt in forbidden texts. The intermediary who had seemed so helpful, so perfectly positioned to facilitate an approach to Bishop Marcos.
His name was Aldous Mercer, and he was currently seated in Evander's clinic, unaware that the pleasant conversation about rare manuscripts was actually an interrogation.
"The Valdris collection is particularly impressive," Mercer was saying, his aristocratic features animated with what appeared to be genuine enthusiasm. "Bishop Marcos has spent decades acquiring texts that most scholars believe destroyed. His appetite for the forbidden is quite remarkable for a man of the cloth."
"And he's genuinely willing to discuss sales?" Evander asked, maintaining his cover as a wealthy collector seeking additions to his library.
"For the right price, certainly. The Bishop is a practical man. He appreciates beautiful things, but he also appreciates the security that wealth provides." Mercer's smile contained edges that Evander had missed during their previous meetings. "Though I should warn you, his prices have increased recently. Something about enhanced security concerns."
"Security concerns?"
"Apparently, there have been threats. Disgruntled parishioners, perhaps, or competitors in the collecting world who prefer acquisition through means other than commerce." Mercer waved a dismissive hand. "Nothing you need worry about, I'm sure. A gentleman of your obvious refinement wouldn't stoop to such methods."
The words were perfectly calibrated. Innocent on the surface, carrying implications that only someone with guilty knowledge would recognize. Mercer was testing him, probing for reactions that might confirm the Bishop's suspicions.
Evander provided nothing useful.
"Threats are common in our circles," he said mildly. "Rare texts inspire passionate responses. I've received my share of unpleasant correspondence from collectors who believed I had outbid them unfairly."
"Quite so." Mercer's smile didn't waver, but something behind his eyes shifted. Calculation masquerading as congeniality. "In any case, the Bishop remains interested in meeting collectors of genuine sophistication. If you're still interested, I could arrange an introduction at his estate. Say, next week?"
Another trap. The same estate where the previous ambush had been staged, with enough time for additional preparations to be made.
"That would be lovely," Evander said. "Though I'm afraid my schedule is rather complicated at the moment. Perhaps we could meet somewhere more central? The Cathedral grounds, perhaps, or one of the collector's clubs in the Merchant Quarter?"
"The Bishop prefers the privacy of his estate for such discussions. Matters of forbidden texts are delicate, as I'm sure you understand."
"I do understand. But surely he can appreciate that a collector of my resources would prefer neutral territory for an initial meeting. Caution is the companion of wisdom, as they say."
Mercer's smile tightened almost imperceptibly. "Of course. I'll convey your preferences to the Bishop and see what arrangements can be made."
"Excellent." Evander rose, signaling the end of the conversation. "I'll await your correspondence. And Aldous, please express my appreciation for your assistance in navigating these complicated waters. A good intermediary is worth his weight in gold."
"You're too kind, Doctor." Mercer stood as well, smoothing the front of his expensive jacket. "I do hope we can complete this introduction successfully. The Bishop's collection truly is remarkable, and I believe you would find much to interest you."
They exchanged the pleasantries appropriate to men of commerce, and then Mercer departed into the afternoon traffic of the Warren.
Evander watched him go from the clinic's window, tracking his path until a nearby corner swallowed his figure.
"The Masked I stationed along his route are following," Gregor said, emerging from the back room where he had been listening. "If he reports to anyone before returning home, we'll know within the hour."
"He's the leak. I'm certain of it now."
"How can you be sure? His behavior seemed consistent with an intermediary who's genuinely invested in completing a profitable introduction."
"Too consistent. He mentioned the Bishop's enhanced security without any prompting, a detail he had no reason to share unless he wanted me to know my previous approach had been anticipated." Evander turned from the window, his mind already cycling through implications. "He's confirming the Bishop's suspicions while appearing to facilitate further contact. The second trap at the estate would have been the conclusion. My capture or death, arranged through an intermediary who could claim ignorance of the ambush."
"The Church has used similar methods before. Cultivating contacts who believe they're serving commercial interests while actually serving theological ones."
"Mercer may not even know the full extent of what he's facilitating. The Bishop could have positioned him as an unwitting asset, someone who provides intelligence without understanding how it's being used." Evander moved to his desk, beginning to draft instructions. "It doesn't matter. Whether he's a knowing collaborator or a useful fool, the channel is compromised. We need to eliminate it cleanly."
"Define 'eliminate.'"
"Mercer disappears. Not killed, relocated. We have contacts in the southern provinces who can provide him with a comfortable life under a new identity, far enough from Valdris that he can't cause additional damage." Evander's pen moved across paper with rapid efficiency. "The Bishop will assume I discovered the betrayal and dealt with it. He'll spend resources investigating Mercer's fate, which will create blind spots we can exploit."
"And if Mercer refuses relocation?"
"Then we provide evidence to the Church that he's been dealing in forbidden texts. His own activities damn him. We simply ensure the right people see documentation that currently exists only in private files." Evander set down his pen. "He'll have a choice: comfortable exile or Inquisition scrutiny. Most men choose comfort."
"This is more merciful than our enemies typically receive."
"Mercer isn't an enemy. He's a complication, someone who got caught between larger forces without understanding what he was serving." Evander moved toward the passage that led to his underground chambers. "The Bishop is the enemy. The network my mother warned about is the enemy. Individual intermediaries are just symptoms of a disease that requires more comprehensive treatment."
Gregor followed him down, his glamour settling into more stable patterns as distance from the clinic reduced the need for maintained appearances.
"There's something else," the old necromancer said as they descended. "The contacts I've been developing in the practitioner underground. They want to meet."
"When?"
"Three days from now. A neutral location they'll designate. They've heard about your network, your plans for the Church. They want to discuss cooperation."
"Discuss cooperation or assess whether I'm a threat they need to eliminate?"
"Probably both. The underground has survived by being cautious. They won't commit to an alliance without personally evaluating what you represent." Gregor's empty eyes caught shadows that seemed deeper than physics should allow. "But they're interested. Your reputation has spread in ways that our deliberate information seeding couldn't have accomplished. The practitioner community sees you as something new, a power that might actually be able to challenge the Church's dominance."
"Or a target that will bring Inquisition attention crashing down on everyone associated with me."
"Also a concern they'll want addressed." They reached the war room, where maps and plans awaited further revision. "I recommend attending the meeting. Even if they decide against formal alliance, the contacts we make could prove valuable."
"Assuming the meeting isn't another trap."
"Assuming that, yes."
Evander studied the maps, tracing routes between the clinic and locations where the underground might choose to gather. Abandoned temples. Forgotten cemeteries. Buildings whose history made them unsuitable for conventional use.
"Set up the meeting," he said finally. "But I want contingencies in place. Multiple exit routes, the Masked positioned for extraction if necessary, and Bones attending with me. His abilities complement mine in ways that improve our collective survival odds."
"He won't like being described as a 'complement.'"
"He'll like being left behind even less." Evander began marking positions on the map: observation points, defensive locations, paths of retreat. "The underground may be allies or enemies. Either way, I need to understand what they represent before I can decide how to proceed."
"And Thomas? The boy's testimony is still our most powerful weapon against Marcos. If anything happens to you at this meeting—"
"Then you and Bones continue the plan. The documentation is already prepared. The distribution channels are in place. My death would be a setback, not a termination." Evander met Gregor's gaze directly. "This has always been larger than me. The children suffering in Marcos's sessions don't care about my personal survival. They care about whether someone is going to help them. If I can't be that someone, then you make sure someone else takes my place."
Gregor was silent for a moment.
"The Bone Witch would be proud of you," he said finally. "Your mother too, from what you've told me."
"Pride doesn't protect children or expose corruption. Action does." Evander turned back to his maps. "Schedule the meeting with the underground. Handle the Mercer situation. And make sure Thomas has everything he needs. I want to see him before I attend any gatherings where my survival isn't guaranteed."
"As you wish."
Gregor departed to execute his instructions.
Evander remained in the war room, planning and calculating, preparing for meetings that might bring allies or enemies, opportunities or threats.
The leak had been identified. The channel had been closed.
But the corruption it represented, the rot that had infiltrated his operations, remained. Until he could cut it out completely, nothing he built would ever be truly secure.
Some infections required patience. Others required the willingness to excise tissue that had once seemed healthy but had been compromised beyond saving.
Bishop Marcos had escaped once.
He would not escape again.
