"Zevlor and his people are here as a temporary courtesy. This is our land, and our laws rule."

Oh no politics. 

(What he should do is leave this conversation before he gets mad and suddenly there are dead druids on the floor, because dead druids don't help anyone. He... is strongly considering doing this. Maybe.)

(It's really upsetting how many situations there are that aren't solvable with murder.)

He looks helplessly at Gale.

Oh no, he's having to do politics while it feels like there's an angry badger in his chest. "I'm sure we can sort out something favourable for all parties if we can speak to your head druid, and maybe Nettie if that's possible--?"

"You were the ones fighting the goblins at the wall?" A druid asked. "The head druid Kagha wishes to speak with you." 

The tieflings visibly do not like Kagha.

"...I think we should see Nettie first and then we can talk to the head druid or anyone else you like." Because meeting Head Druit Kagha means a high chance of stabbing Head Druid Kagha, and he wants to be a good role model for Astarion about only murdering people if it doesn't sabotage any of your important life goals. 

The druids and bear wave them through.

Several druids are chanting in a circle around an idol on a plinth, and there's a growing green glow?

Also, inexplicably, a foppish dressed human watching proceedings.

There's a side chamber containing a pair of druids talking to a child, and another druid treating a jay with a broken wing next to a drow corpse on a table. 

Cayden is refusing to see anything or hear anything until he has talked to the healer. 

The healer seems to be the woman with the blue jay. "I'll be with you in a minute." She casts a spell on the bird, and then turns to face Cayden. "What do you need?"

"I and my party were kidnapped by mind flayers and had tadpoles put in our heads. We would like to not turn into mind flayers."

"...I see. We've had a few cases of that around here. This one--" she nods to the corpse on the table "attacked us with some goblins, and when he died a tadpole crawled out of his eyesocket. Master Halsin went with those adventurers to investigate. If he's not back-- I'll do what I can."

Cayden looks expectantly at Wyll, the person who knows what Master Halsin looks like. 

"...Halsin was meant to be with those adventurers you helped at the gate."

"Should someone ask them what happened to him?"

"I think we can assume they'd tell us straight up if he was killed," Nettie says. "Which means he must be kidnapped, but that doesn't make any sense."

Astarion looks deeply bored, and is watching the scene between the druids and the child in case it's more entertaining. 

Gale looks like he's trying to calculate from first principles why it doesn't make sense. You look smarter if you ask smarter questions.

Cayden doesn't have that problem. "Why doesn't it make sense?"

"The goblins and us in the Grove have lived in the same area since before I joined. Before I was born, probably. There was conflict, yes, but not like this. They would have had no reason to want to kidnap the head druid, or think it would help their goals."

"Always good to avoid enemies that know Flame Strike."

"Or can turn into bears."

Honestly it's really baffling that they wouldn't immediately tell someone that he was kidnapped? Telling people when the head druid is kidnapped is more important than telling them when he's killed! There's only one of these things a party of more experienced adventurers can do something about!

"We could go ask the adventurers what happened and see if we can get Master Halsin back. --But take a look at Lae'zel or Astarion first and see if you can do anything about it, it'll probably be easier to get him if we don't have a parasite."

"I'll do what I can." Nettie rummaged around her set of herbs. Nettie rummaged around for a suspiciously long time. 

She turns around with a sprig of thorny plant. "This should help."

"No, it won't." Shadowheart is smiling so so pleasantly. "I am a trained healer, too, and I know what Kelemvor's thorn looks like."

"What's Kelemvor's thorn?"

"Impressively deadly."