"As someone who had never heard of the Worldwound when I woke up," wait, she can't say 'this morning,' she doesn't know when she was last conscious before getting abducted by demons, it's plausibly been more than a day, and it was already afternoon when she came to in the square, "today, I assume that 'crusades,' have something to do with it, but, uh, that's all I got. Could someone contextualize me please." 

Lann and Wenduag both give her significantly more advanced versions of Anevia and Seelah's upended cow look. 

"Yes, the Crusades are about the Worldwound. The fourth and most recent one ended about eight years ago. The first one started almost a hundred years ago." 

"What makes a crusade different from a not-crusade, if you're still fighting demons when there hasn't been a crusade for most of a decade?" 

"You can't not fight the demons, or they'll destroy everything. The Crusades are different. Each one was called with a specific goal in mind, usually retaking territory that had already been lost."

"Huh." Based on storybook logic, a fifth one will probably be called soon, possibly in direct response to the attack on Kenabres, but Lusilla doesn't actually know if storybook logic is trustworthy here. "Has much of Mendev been lost to demons?" 

Grimace. "Depends on how this attack goes, I suspect. Losing the Wardstone would be really bad. But--not much, especially compared with how it could be. Mendev is a place where people come from all over the world in order to fight the demons; the country's sort of remade itself around that. Not that we're in great shape, but hey, we're not Sarkoris. Yet." 

"Wait, is that what happened to Sarkoris?" 

"...How in the world do you know about Sarkoris but not the Worldwound?" 

"Rivertree's village druid, Griar, told me his great-grandfather fled Sarkoris when it fell. But he didn't say what happened to it, and given that he was telling me about it in the context of something having happened to Hilltop, and nobody has any idea what happened to Hilltop, I had no reason to think anybody knew what happened to Sarkoris!" 

...

Blah blah weird surfacer stuff, nobody cares. 

"...Countries are a little harder to misplace than villages." 

"Huh, okay." The More You Know. 

This is not a circumstance in which it is EASY to take someone aside for a private word, but Wenduag manages. 

"Listen," Wenduag says quietly, "when we get to the village, don't show Sull the sword." 

"Huh? What? Why?" Lusilla has very little education, but she does, actually, have a positive intelligence modifier. "...I already told Lann I would. If he says I will, and then I don't, either I look like a huge jerk or he looks like a huge idiot." 

"It'll be the idiot one. Everybody knows Lann is more interested in old legends and tales of glory than is good for him." 

"Maybe to your people, but Seelah and Anevia were there when it happened." Also Camellia but Lusilla cares less what she thinks. "They'd know I was being mean to Lann for no reason."

"Not no reason. I wasn't joking when I said it was a fool's errand. The Shield Maze kills experienced hunters, nevermind the young and elderly that Lann wants to bring through with them." Wenduag wishes she had some kind of leverage--if these surfacers needed to go through the Shield Maze themselves, she could offer to guide them; but with eyeballs monster girl able to fly them all back to the surface, they have no reason to get involved in the tribe's business. 

"Why does he want to do that?" 

"The children who ran into the maze aren't the only ones far too eager to see the tribes return to the surface to fight demons." 

"I don't think I understand why that involves bringing the infirm through the scary death maze." 

"...Starvation wouldn't be better." 

So the assumption is that the village druid would come with--plausible, druids are pretty good at fighting, compared to farmers. "They wouldn't have to be left behind," she says instead. "They could come up to the surface with me and the rest." 

"Even the sword won't make Sull make up his mind that fast, let alone summon the rest of the tribes."