Thodek wis save: 13

Thodek is able to push the feeling out of his brain and shakes it off. I’ll assume you step back out of the mist and return to the party. Nothing feels different to you, but you are unsure of what would have happened if you had stayed in the mists much longer.

What would you like to do?

Voyage claps the duergar on the back as he reemerges. "Well, that seems to answer that. Your flesh hasn't melted off horrifically, so I'll assume its safe to proceed."

"Indeed. Perhaps it would be beneficial for us to hold our collective breath as we pass through. Ominous mists are rarely beneficial to inhale," Syvis remarks.

Cailean shifts from one foot to the other, watching the mist intently. When no harm appears to come to Thodek, he breaths a small sigh of relief. "Hnn. These caverns are full of surprises, so who knows what we'll come across next. At least this one doesn't appear to be immediately harmful."

Syvis steps to the edge of the mist and unrolls the material she's been using for the map. Holding one edge she begins waving up and down like a fan to see if any amount of mist can be temporarily dispersed.

Thodek looks to the others, "The mist feels very strange for some reason, but nothing I couldn't handle. Prepare yourselves and I think we should try and hurry through it. I'll bring up the rear to help any stragglers who have trouble."

"So the mist is safe then? Anyone knows what it actually is?" Nicholas says hesitatingly looking to the underdark natives for answers, while he prepares to make a dash for it along with the rest of the party.  

Voyage looks at everyone standing at the edge of the cave, seemingly psyching themselves up and she sighs. They were so much like her old shipmates sometimes it surprised her. It was, cute in one way, but in another way, completely and utterly annoying.

"Sod it!" She says. "Come on, ladies. Last one through buys the first round when we make it back to the surface." With that, she walks into the mist and through the passage towards the cavern exit.

WIS Save: 11

Syvis runs after her but double dashes (movement, action, bonus action = 90ft/round).

Wisdom save: 9

Yep! It seems as though the general consensus is just to quickly move through mist, and everyone who does must make a wisdom save. 

Voyage and Syvis are both able to successfully dash through the mist, shaking off the creeping sensation at the back of your mind (2 successes). 

Shuushar: 18
Stool: 8
Jimjar: 12 
Derendil: 1
Topsy and Turvy: 16

Will post results of saves in the morning. 

Thudek will charge in last, trying to grab and pull out anyone who is affected, assuming he isn't.

Wis save: 12

Nicholas mouth gapes as the rest of the party start rushing through the mist. With little choice and not wanting to be left behind, he pushes aside his concerns and too rushes after them.

Wisdom Save: 15

Cailean takes a deep breath and charges with the others through the mist.

WIS Save: 23 (If it's a charm affect, he has advantage: 21 and he cannot be put to sleep with magic)

Nicholas and Cailean are both able to shake the odd feeling off and join Voyage and Syvis safely in the other passageway. Thodek begins to run last, but after about 10 feet, his pace slows as he stops in the middle of the cavern (Please roll a d100).

Like Thodek, all of the NPCs slowly stop in the middle of the mists, clutching their heads (Failure). 

 Through the mists, you are just able to make out Jimjar suddenly drop unconscious

Both Stool and Turvy begin to violently spasm. You hear the sound of Turvy’s high pitched scream, and spores begin to envelop Stool, as his small body seems racked with pain. 

Derendil suddenly freezes in place, now paralyzed 

Shuushar‘s face seems begins to fill with fear as his eyes quickly dart around the mist filled room. He begins to dash the opposite way, out of  mist, and back into the passageway the party started in. 

Topsy draws her dagger with a grin, attacking her brother who is closest to her. (Attack: 19 Damage: 7) The dagger sinks into Turvy’s skin as his scream intensifies with the pain. 

Those who already made it across (Cailean, Nicholas, Voyage, and Syvis), and are now watching this chaos unfold. What would you like to do?

(Sorry, completely forgot about Rian. Will send a post with how his actions unfold later, as I’ve got to do something.)

Syvis exits the mist and turns back to check on the progress of her companions, stony-faced, eyes darting around taking in the scene. Seeing the totally unexpected horror scene playing out behind her, she takes out her silk rope and begins tying it into a lasso. She looks around for Rian, hoping that he made it out and can help her pull to extract everyone from the mist.

"Damnit!" Nicholas curses as he sees more than half their party caught in the mist. Seeing the madness that has over come them, Nicholas steels himself then turns to Syvis, "Tie the rope around me. I'll go in and try to bring them out. If I'm affected as well, pull me out."

Rian Save: 14

 Rian exhibits similar movements and actions as Shuushar, instead running towards the group who has already made it through the mists. He reaches you, out of breath. “Something is wrong with that mist. I saw something... something horrible.” Rian is frightened and unwilling to return into the mist. 

Thodek d100: 91

Surveying the scene, Syvis completes her lasso and attempts to catch the old kuo-toa before he can get away. Addressing Rian she says, "You are correct. There is a horrible threat to the group and I require your assistance in saving our people, young sir knight. Hold the other end of this rope and help me pull them to safety."

Ranged attack(?...let me know if you want me to use a different mechanic): 18