Victòria is so sick of dealing with secret Evil people. Openly Evil people are also bad, but at least if someone is openly Evil you know where you stand from the beginning, you don't think they're on your side only for them to tell you that they burned down houses full of innocent children.
The good news is, apparently it's not actually that hard to figure out who's hiding the fact that they're secretly Evil? She'd assumed from the initial explanation that you had to be really powerful to notice; if it was easy to see that you were hiding it, hiding it wouldn't be very useful.
But Blai is apparently only third circle, and also she's pretty sure she recognized the spell he was casting — Calistria's granted it to her a few times since she arrived in Westcrown, not that she had any idea how to interpret what it was saying. Normally she'd stay away from someone who ran a Worldwound fort — soldiers and powerful wizards are both bad news — but it turns out that, despite being Lawful, Iomedae is actually pretty neat. If Blai is anything like Valia, he should be fine.
"Delegate Artigas?" she says, having tracked him down after the Diabolism Committee wrapped for the day. "I was wondering if you could show me how to tell if someone is using Undetectable Alignment to hide the fact that they're Evil."