"Wenduag."  Darth Occlus can use her spell without speaking any words or making any motions, so Wenduag doesn't think she can get the drop on her, even if she gets her away from the other crusaders.

She's trying to think of how to covertly ask Darth Occlus if they need to tie up Wenduag or anything like that.

"Are you sure you want to trust Wenduag, uh..." he isn't sure if he wants them to take her bow and knife or tie her hands or something even more drastic. 

"I can also help you guard this 'Wardstone'."

"Not armed, I think." Occlus will telekinetically relieve her of her knife, bow, and arrows before allowing her to move again. "And I will be watching."

"I can prove my loyalty to you if given the chance."

Lann looks at her skeptically.  She spent years betraying their tribe, he doesn't think her loyalty will last much longer than it takes her to get out of the range of an arrow or a spell.

"Start by not making trouble now. Perhaps a chance will come later."

"Shall we head back to the Wardstone?"  It is just out of sight and barely within earshot of them.

The Wardstone's defenders are all curious about Lann and Wenduag, staring at them intently. 

"Don't let my good looks distract you all from guarding the Wardstone!"

There are a few awkward forced chuckles.  Someone attempts a half-joke in response back. "Mendev certainly has some interesting sorts of tieflings?"

Lann forces and awkward laugh in response.

That is pathetic but she needs to be making herself wanted by these people so they don't kill her as a demon cultist.  She notes the already captured cultists.

Daeran addresses Darth Occlus directly.  "These look like some interesting people you've picked up?"

"Neathers, apparently. Natives of the caverns below your fair city and reportedly descended of crusaders."

"Descended of crusaders and what else?  Creatures of the underdark?"

He tried to defuse the situation with some humor and that didn't work.  Well actually, at least this person suggested bestiality, not cross breeding with demons, so really it is an improvement on Lann's worse case!  He'll stoically ignore them and take up a defensive position as Anevia directs.

"Or perhaps sufferers of a mutagenic curse of some sort."

She sees a chance to make herself useful!

"Savamelekh has hinted that he made our ancestors carry out a version of the ritual he forces on us Neathers to make us more powerful."

"Well, there you have it."

“I assume this ritual involves something horrible?”

“Eating the flesh of an Aasimar, then mastering the berserk demonic rage that comes over you as a result.  Many fail to control the rage and are simply slain, but I succeeded in controlling it.”

“I never knew my flesh had such power.  If I’m ever in need of some berserk demonic rage I’ll try giving myself a bite.”

This is horrifying to listen to.  Luckily Anevia has him guarding an angle of approach where he can face away from them.