Bryony follows Boona and lashes out at the first goblin she can reach.

Shortsword: 9, assuming a miss

Dagger: Nat 1 :(

Boona charges forward, effectively blocking the tunnel to the southwest, swinging her maul ineffectively.

Bryony finds she cannot follow Boona and expect to fight in the tight corridor, and so turns her attention on the goblin scrambling to escape the webs to the southeast. Her first swing misses.

(I'm holding on Jurgen's turn until we see how the goblins fare. Bryony may reroll that natural 1.)

Jorzu, prone on the stairs under Quinn and hemmed in on all sides, finds himself surrounded by friend and foe alike. But he may still act (crawling past his comrades, say, and/or taking an action from the floor.)

Jorzu 

"...elp" gasps Jorzu as he's brought back to conciousness. From the ground, he looks around at the unfolding battle. "Everyone made it. Good, good" he sighs in relief that at least everyone had made it in and the group had not been split. He shuffles back from under Quinn and locks his sights on the stairwell goblin. "You should've fallen for my trick, it would've been easier" he says, chastising his target, as two waves of Force speed straight at the goblins head.

M - crawls back 10ft from under Quinn

A - Eldritch Blasts at the stairwell goblin

Blast 1: 11 Damage: 12

Blast 2: 15 Damage: 10

Jorzu crawls out from under Quinn, past Fergus and Bryony, before ineffectively blasting the stirwell wall behind the nimble goblin guard with beams of crackling black energy.

The goblins to the southeast scramble to get out from the huge mass of webbing:
DC15 Saves: 3, 19, 8.  More saves: 11, 20

Three of the goblins are restrained, stuck firmly in the webbing. Two - including the one closest to Jurgen - manage to free themselves.

Chaos erupts.

One big goblin, covered in webbing, tears free and staggers forward. Its eyes go white, and another blast of psychic energy engulfs the party.
Everyone: make a DC 13 Intelligence saving throw. On a failed save, take 10 psychic damage and become incapacitated until the end of the goblin’s next turn. On a successful save, take half damage only.
Unfortunately for them, two of its comrades are also caught in the psychic explosion. Saves: 11,  12

...

Two are caught in the crossfire, including the stairwell guard and the one nearest Boona. They freeze up in sudden pain. (as may some of you... roll your saves!)

Another one, behind its incapacitated comrade, cleaves into Boona with a floating psychic blade it conjures out of pure thought:
Psychic Blade #1 vs. Boona. Ranged Attack: 14. Hit: 12 psychic damage, and Boona must subtract 2 from the next attack roll or saving throw she makes before the end of the goblin’s next turn.
Psychic Blade #2 vs. Boona. Ranged Attack: 11. Hit: 11 psychic damage, and Boona must subtract 1 from the next attack roll or saving throw she makes before the end of the goblin’s next turn.
Psychic Blade #3 vs. Boona. Ranged Attack: 7. Hit: 13 psychic damage, and Boona must subtract 2 from the next attack roll or saving throw she makes before the end of the goblin’s next turn.

Another goblin fires its bow at Boona.
Shortbow Attack vs. Boona: 20. Hit: 6piercing damage. 

The goblin nearest Jurgen and Bryony, freed from the webs, slashes its scimitar at Bryony:
Melee Weapon Attack vs. Bryony: 20. Hit: 3 slashing damage.

Three of the goblins struggle to escape the webbing: DC15 STR Saves: 11,  7,  11

(If Jurgen makes his INT save, we'll see what his green fire does... Roll first, and then I'll parse post #3891!)

Everyone: roll that DC 13 Intelligence saving throw (taking half damage if you succeed), and then everyone may act!

Jurgen

INT Save: 22

Weathering the psychic blast with only minor damage, Jurgen cuts down the free little goblin with a blade dripping green flames. The green fire leaps to the big goblin behind it. 

It frees the big goblin, but it also burns it. Fire damage: 5

The flames continue to spread through the webs.

Everyone but Jurgen should make their INT Saves, and then act!

Boona Int Save- 9

Boona is dazed by the weirdy head stuff and so just stands there.

Dagger Re-Roll! - 21 to hit for 4 piercing damage

Intelligence Save - 15

Bryony shakes off the psychic assault and launches herself at the big goblin wreathed in flames.

Shortsword - 12 to hit for 10 piercing damage

Dagger - 21 to hit for 4 piercing damage

Sneak Attack - 8 damage

Fergus Intelligence Save:  4

Jorzu INT save 8

((Oops. Forgot Jorzu gets adv on INT saves due to Species feature. Here's a second roll. DM please use whichever is higher))

INT save 17

Bryony manages to slip a blade past the burned goblin's defenses, injuring it. It is looking bloodied.

Jorzu is up next!

Quinn staggers from the psychic blast. He shakes his head trying to get his bearings, but his bell is rung. 

Jorzu 

Standing in place, Jorzu looks left to right. It seemed that Boona was out numbered. He moves to the bottom of the W staircase and throws 3 aqua coloured glass beads at the goblins. They shatter above the goblins heads, showering them in a fine dust.

M - stand and move the 10ft to the square above Boona

A - cast Tasha's Hideous Laughter on the 3 goblins. WIS15 save or become Prone and Incapacitated. 

DC15 WIS Saving throws as the goblins look up to find themselves in a fine colorful confetti: 21, 8, 1