The woman arrived in early summer posing as a physician's widow seeking to study Aldith's methods, and it took the valley considerably longer to recognize her for what she actually was than either Corradino or the careless clerk before her.
Her name, she gave as Signora Beatrice, and her Latin was flawless, her questions about the fever book precise and professionally curious in exactly the manner a genuine physician's widow might ask them. She stayed a full month, welcomed openly by Aldith, who had grown, since the Genoa agreement, considerably more comfortable sharing the valley's medical knowledge with outsiders who approached it honestly.
It was Hamo who finally noticed the discrepancy, buried in a casual remark she'd made about the fever house's construction — a detail about its ventilation that she could only have known by measuring it herself, at night, well outside the hours Aldith had ever shown her the building.
"She has been counting more than remedies," he told the council, laying out his careful observations with the same precision he brought to any genuine problem. "The fever house's dimensions. The distance between the towers. The number of armed men Wat keeps on the night watch. I do not believe she is a physician's widow at all, or if she once was, I do not believe that is the whole of what brought her here."
Alaric's assessment, once he'd reviewed Hamo's notes, carried the particular grim certainty of a man recognizing a pattern he'd seen before. "This is not Rome's careless clerk, nor Genoa's honest agent. This is someone considerably better trained, sent by someone who has grown tired of secondhand reports and wants a proper accounting of this valley's actual defenses, not merely its currency and medicine."
"The Empire," Victoria said slowly. "Or someone working for them."
"Likely. I have seen this pattern in old dispatches from my years serving the Baron — a soft approach first, testing for weakness, followed eventually by someone considerably more capable if the first attempts don't satisfy whoever's asking." Alaric's expression was grave. "I would recommend against confronting her directly, Lord Thomas, for the same reason I recommended it with the wool merchant's clerk. Confrontation tells her employers we're alert. It does not tell them anything false to waste their effort chasing."
They ran a version of the same careful theater they'd used before, though considerably more elaborate this time — Wat's forge deliberately underselling its own capacity, Elias allowing her a glimpse of a tower sightline map subtly, carefully wrong in its northern reaches, Aldith sharing real medicine freely while deflecting, gently and without apparent evasion, any question that touched too closely on the fever house's actual defensive capacity.
Signora Beatrice left at the end of her month with careful, practiced gratitude, and it was Victoria, watching her party depart down the new southern road, who voiced the thought that had been building through the whole careful month of managed deception.
"She'll report home that we're worth watching, whatever false details she carries with her," Victoria said. "That's simply the cost of having built something this valuable, Thomas. We can misdirect the details. We can't make the interest itself disappear."
"I know." Thomas watched the small party recede into the summer haze, thinking of the falling number in his own tunic, of a valley that had grown, in three short years, from a desperate secret into something powerful enough to draw the attention of empires he'd never expected to concern himself with at all. "I used to think the danger was the Baron. Then it was the Church, and then Rome's honest curiosity, and now whoever sent her. I wonder sometimes if there's ever a point where a place stops needing to watch its own back, or whether that's simply the permanent cost of having built something worth wanting."
"I don't think there's ever such a point, Thomas. Not for a kingdom, and not for a town." Victoria took his hand, her grip steady despite the same weariness he could hear in her voice. "But we've survived every test so far, and grown stronger for having survived it. I'd rather keep proving that, one careful season at a time, than wish for a safety I don't believe this world has ever actually offered anyone."
They watched the road empty back into its ordinary summer traffic, merchants and carters resuming their unhurried business, entirely unaware of the quiet, careful war that had just been fought and won in their own valley without a single blow ever being struck.