(actually I'm gonna try sort of a different flow for initiative in this encounter. As opposed to waiting for everyone/24 hours I'm gonna take my turn essentially when I deem that enough has happened to warrant it. Same rule applies, you can post once per round. Will probably still use the original method for more complicated fights but I want this to be faster and more dynamic)

Taking care not to slice through Liafial, the swords of Clermar and Frank manage to knock away most of the larvae, the last couple popping like zits as they are hit with Nean's psionic attack. Before you can even catch your breath though, a sound like a bowling ball precedes two more crashes, as more vessels filled with the grubs land near the feet of Frank and Clermar , grubs now beginning to crawl up their legs.

Grubs attacking Frank: 9

Grubs attacking Clermar: 19

"Damn bugs!" Clermar moves out of the swarm around him while staying in reach of it for another swing.

Greatsword: 15 to hit, 12 damage

Ospos, getting impatient repeats, "Get away from that opening!"  Then he goes in for a grub, before backing out per his own advice.

Attack grub: 17 Damage: 4

Nodrus takes a step back as a swarm of small critters begin attacking the party, as his left eye twitches with a breif bloodshot red as Nodrus enters a rage (1/3 left).

Movement: Nordurs runs up towards the nearest grub to him, avoiding attacking those that are latched onto his companions.

Bonus Action: enter rage

Action: Greataxe attack against the nearest grub to him, reckless, TO HIT: 16 Damage if hit: 13

"AH! GET OFF ME! GET OFF ME!"

Frank becomes a little frantic as he swats the grubs off of himself, turning he bolts back down the tunnel doing his best to squeeze past everyone without touching them.

Once he is clear and away from the grubs, he starts to calm back down.

A shiver run down his whole body,

"Eeah! This job is not turning out so great. Ah, I can still feel them crawling on me!"

Another shiver runs down Franks body. Getting himself under control, Frank keeps an eye on the grubs from the back of the group, ready if any try to get to him again.

Opportunity Attack against Frank: 6

While Frank flees, flinging grubs off of himself, the strikes of Clermar, Ospos, and Nodrus manage to clear out about half of the insects, slicing and piercing through their fleshy bodies. They still swarm around, one group pressing on and up Clermar, the other turning its collective attention to Nodrus. So far their tiny jaws have only found leather and fabric, but the grubs are persistent.

Attacking Clermar: 2

Attacking Nodrus: 15

"Aaaaagh!"

Dril casts Firebolt near Clermar's feet, hoping to scorch the grubs.

Attack:16

Fire Damage: 4

Clermar again kicks off the grubs that have surrounded him and steps back for another swipe.

Greatsword: 9 to hit, 13

Nean repeats his psychic attack against the grubs that now swarm Nodrus.

Mind Thrust: INT save 13 - DMG: 7

If he is still able to do so, he will try to examine the spot where the grubloads are falling down from for any being that is tossing them into the group.

Investigation: 13

With a grunt of frustration, Ospos moves forward to stab another grub, then moves to the back again. 

Attack grub: 19 damage: 7

The combined attacks of Dril and Clermar are enough to exterminate the last grubs crawling around the half elf. Meanwhile, the psionic assault by Nean and a slinking strike from Ospos, leave only a couple grubs left near Nodrus. These insects quickly scurry away into the shadows, trying to flee.

(You can take opportunity attacks if you like)

Nean: The opening seems to go on for a few feet, curving up almost like a laundry chute. You can hear voices barking back and forth in draconic echoing down the tube. This is followed by the sound of a hollow clay object being dragged across stone.

"Are they all dead? I'm not coming over there unless they are all dead."

Frank holds back behind everyone, very unwilling to have any more of the grubs crawl on him.

"Whoever had those raining down on us is still up there. We better keep going before they send reinforcements." With that, Nean lifts up the torch again and hurries past the open ceiling.

Dril attempts to translate what the kobolds above are saying (He knows draconic)

Perception:15

"We should hurry down the tunnel, we are ambushed!"

Frank looks conflicted, unsure if he should race ahead or turn and leave.

Making up his mind he puts one of his shortswords away and run forward and scoops up his torch and run past the hole with everyone else.

"I really hope we don't have any more touchy/feely stuff ahead of us."

Dril: You hear "More grubs! More grubs! I think I still hear them!" 

As the party begins rushing past the opening, you see that the tunnel continues to turn towards the right, forming a tight curve that also descends gradually, spiraling downwards deeper into the mine.

"They're getting more grubs let's MOVE!"

Frank pushes ahead to put some more space between himself and the hole.

As he moves along the path he keeps his eye's open for any more traps, kobolds, or holes.

Perception check to notice any danger before he walks right into it: 16

(edit: also Frank dropped the Silent Image of the cat during the fight and hasn't recast it yet)

Ospos and his dancing lights Humanoid resumes the marching order and continues down the tunnel with the group, also keeping a watchful eye out from his position.

Perception: 13

Frank and Ospos:  The tunnel ahead seems to be mostly featureless, with nothing out of the ordinary that would point to kobolds waiting in ambush, or traps hidden. What does catch your attention is sounds of clamor echoing down the passage from ahead. You hear muffled kobold voices, too far away to make out clearly. You also hear objects being moved around.