(Beegred moves 2 square-across a ring to I8.
I would edit this to the end of the previous post, but the die roller is messed up enough that I don't want to risk the results changing.)

Rodolfo goes for another set of magic missiles, this time all at the same target as Beegred. Damage: 12 force damage total.

Beegred drops (sticks them to a web) his weapon and draws his bow.  He fires two shot downward at the Kuo-toa engaged in the distance with Orubis.  The first arrow flies true but the second sticks to a strand of web part way to the target.

Rodolfo fires another volley of magic missiles, all of them targeting the same Kuo-toa engaged with Orubis.  Those missiles unerringly weave around the webs to find their mark.  The Kuo-toa looks on death's door after all of those blows.

The Persistent Derro Caster moves 10 feet to line up Skameros, Thurnir and Beegred...

DC 12 DEX saving throw.  On a failure, take 21 radiant damage, or half as much on a success:

• Skameros w/adv: 14
• Thurnir: 22
• Beegred: 15 

(Skameros's turn)

OOPS!  Beegred moved.  He's at i8, not in line with the Chaotic Beam from that Derro Caster.  So only Skameros (Who I think is unconscious again) and Thurnir are affected.

"Not again...."

Skameros falls to the ground

[Death Save: 1]

The severely wounded fanatical Kuo-toa continues to fight, attacking Orubis with fervor...

• Bite: Attack: 16 Damage: 4
• Pincer Staff: Attack: 14 Damage: 8

On a 10 or less, giant spiders join the initiative:  37

Thurnir's turn, then Orubis, Beegred and Rodolfo.

Skameros crit failed his death save, so he is one fail away from death.

Thurnir reels from the radiant blast, and seeing where it went, looks at Skameros and frowns.  “nappin again?  This time stay up!”

 He uses his last available misty step to Skameros, and again lays on hands, for another 15 hp.  

Orubis keeps plugging away at the kuo-toa then

Attack: 21 Damage: 3 

Attack: 8 Damage: 8 

Thurnir heals Skameros (again).

Orubis finishes off the Kuo-toa in front of him.

(Beegred then Rodolfo's turns)

Relieved that Orubis has finished off that foe, Beegred moves to H10 (back up the ring) to get a better angle on the Derro caster.
Bonus action to apply Hunter's Mark, followed by 2 arrows.

Attack1: 23 Damage: 9

Attack2: 11 Damage: 7

Rodolfo will carefully move forward 10 feet and shoot a ray of frost at the closest (non-prone) enemy:

Attack: 27 Damage: Unable to parse dice roll.

(End of combat)

The webs beneath your feet and around you still vibrate from the pitched battle that just concluded.  The enemies are slain, and all of you survived.

(What do you want to do immediately after the combat?  Reply in OOC for discussions, otherwise reply here to take your next steps.)

Everyone except Rodolfo gather and start looking for somewhere off the webs to settle down and rest.  Rodolfo climbs to the three casters and quickly goes over their bodies.

The corpses still have the false second head sewn into the flesh of their shoulders.  Crude patchwork things fashioned from decaying flesh and scraps of materials, made to look like a grotesque monkey's head.  The Kuo-toa have naturally thick skin and have nothing more than tatters of clothing around their groins.  The Kuo-toa caster wielded a scepter that looks as crude as the monkey heads.  The Derro casters wore tatters of neglected clothing and wielded crude looking quarterstaffs.  None of those look like they would survive more than a couple battles before crumbling into pieces.

The only thing of value on all three of the casters are very fine looking pouches belted around their waists.

Beegred will help Rodolfo grab the 3 "very fine looking pouches", then join the others in whatever route they found off the webs to a safe resting spot.

"At some point we will have to get back on the webs to move forward, but right now I want time to bind my wounds without spiders bothering us. We can investigate the pouches later."

“Aye.. I’m hurtin and methinks I can’t do much t help without a rest.  Mayhap the spiders can  eat these under not us?”  He kicks at one of the Derro, then looks around for a place to rest. 

Orubis and Thurnir immediately start looking for a place to rest somewhere away from the webs and their dangers.

Nearby, on a rocky wall of the cavern at the edge of The Silken Path, is an alcove overgrowing with fungi and lichen.  Orubis instinctively heads there and finds pockets among the roots of the giant mushrooms.  He ushers the rest of the party into the soft growth and once inside, coaxes the mushrooms to bend and shift such that it forms an enclosed cocoon for the party.  The inside is soft and glowing faintly from the bioluminescent lichen.

This place is as good a place to rest that can be expected in such a hostile place.

Rodolfo examines the three pouches that were looted from the corpses of the casters. The pouches themselves are of high quality make, a distinct contrast to the ragtag and unkept Derro and Kup-toa.  You're certain these were looted or stolen.

Looking inside the pouches, Rodolfo finds a thick malleable substance with an opaque whitish color.  Touching a bit of it with his index finger, he finds it adheres well to the skin of his finger and is hard to remove because it is very slippery.

By the end of the examination, Rodolfo is certain the substance and the pouches are not magical in any way.

After an hour or so of rest to patch up wounds and catch their breath, the party leaves the shelter of the mushrooms to continue their climb, this time with the aid of the grease slathered on hands and feet to counter the stickiness of the webs.  Not far away, a handful of giant spiders are busy cocooning the corpses of the defeated kuo-toa and derro.