Quinn growls an arcane incantation as he darts towards the westernmost goblin with an almost superhuman like quickness. He strikes at the goblin with Lightbringer with two quick attacks.

Bonus Action: Cast Zephyr Strike
Move: Move within melee range due to increased movement speed from spell. 
Attack 1: 14 to hit for 12 damage
Attack 2: 26 to hit for 11 damage (12 damage total IF attack 1 hit due to colossus slayer feat).

OOC: Goblin has disadvantage on next attack roll against Quinn due to Sap

Bryony goggles at the now gargantuan Boona, who is now four times taller than her. 

"Wait, Boona, don't smash!" she says. "Keep one of them alive to tell us where my auntie and Carp are!"

Karst begins to tear up the tents, scattering bedrolls and goblin belongings everywhere.

Jorzu's staff enlarges into a massive snake that dwarfs even Boona. It tears into the fleeing goblin, which tries to wriggle away. DC14 STR save: 15 

Quinn joins Jorzu's serpent in an unnatural surge of speed. He clobbers the goblin with his mace.

The lefthand goblin is grappled by the enormous snake, and in very bad shape. It squeals and shrieks in panic.
Then it assails its captor with fists crackling with unearthly energy:

Unarmed Strike#1 vs snake: 6. Hit: 5 bludgeoning damage plus 5 psychic damage.
Unarmed Strike#2 vs snake: 12. Hit: 7 bludgeoning damage plus 2 psychic damage.

The snake then recoils from an unseen thrust of telekinetic force. Snake DC 13 Strength saving throw or be thrown prone: 13

The righthand goblin disengages and dives into the shrubbery to Hide. (DC15 Stealth check: 22)

Weathering the blast, the snake hangs onto its badly-wounded prey. 

The other two goblins have vanished. (You may make a DC22 Perception check action to try to locate the eastern one; the northern one may be gone entirely.)

Everyone may act! (Jurgen is prone.)

Fergus:

With his enhanced vision, Fergus spots the goblin hiding to the east and points it out with the strumming flourish from his harp.  A flying silvery note streaks towards the hiding goblin in an unusually solid musical moment.  He then rushes to the north to try and catch a glimpse of the other escaping creature, pointing out its location to the others if his new vantage point allows it.

Action:  Starry Wisp :  Attack: 16 Damage: 9 (on a hit makes it glow and not be able to be invisible for a round)

Move:  North and hopefully to higher ground

Misc:  Point out goblins he can see with his See Invisibility spell.

(Edited to try and push the dice rolls through)

Jurgen, not used to getting pushed to ground, stands up and looks about for the goblins. "Where'd they go?" 

(waiting to complete my action based upon if I see a goblin, know it's location (DISADV) or not at all.)

Fergus' spell illuminates the goblin hiding in the bushes, the one that got away from Boona. Bryony rushes the creature and again tries to incapacitate it with non-lethal force, knocking it out if possible.

"Stop running away! Tell me where my family is right now!" the halfling says, her eyes flashing with anger.

Action: Shortsword (Non-Lethal) - 20 to hit for 10 piercing damage & Dagger (Non-Lethal) - 10 to hit for 5 damage

Movement: Toward eastern goblin

Boona sees the glowing goblin and brings her maul down if its still moving after Bryonys clobber, holding back on her blow at the last minute as Bryonys words register.

Attack: 18 Damage: 10 ( Non Lethal)

Quinn scans the area and when he see's that no one is in immediate danger, he moves in to interrogate the goblin that's being grappled by the snake. Quinn kneels beside the goblin , grasps its head and forcefully pushed its head aside to expose its neck. He presses his dagger against its neck, drawing blood.

In goblin:

"Move one muscle and I end you! Where have you taken the townspeople that you kidnapped?!"

Quinn violently shakes the goblin and plunges his dagger in deeper.

"Tell me now and you live! By the hells, if you don't start talking I'll hurt you in ways even Ruxithid couldn't!

OOC: Intimidation check and attack rolls just in case.

Intimidation check: 6 (w/advantage due to the circumstances. Otherwise my roll was a 3)

Readied Action: IF the goblin moves in anyway in an aggressive manner, Quinn will stab it with his dagger. 11 to hit for 6 damage

Fergus's musical mote takes down the fleeing goblin to the east. It lights up briefly in a bloom of radiance, but then detonates in a blast you can feel more with your mind than your body. It is gone.

(Jurgen and Boona may retcon their turns accordingly.)

Fergus runs north to look past the brushy tree, but sees no sign of the fleeing goblin to the north.

Quinn threatens the snake grappled goblin to the east.

"I surrender! I surrender! I kidnapped nobody! I don't know anything!" it shrieks.

Boona and Bryony may modify their turns if they choose.
Jorzu, Jurgen, and Ruven may act. The east goblin is dead. The north goblin is gone. And the west goblin is grappled, badly wounded, and surrendering.

Bryony hears the goblin surrendering, and she runs over to it. If the goblins really weren't responsible for kidnapping Aunt Qelline and Carp, she's going to feel at least a bit bad that everyone came in and started killing them. But then she thinks back to their very first encounter with goblins and the loss of Sir Rodrick, and she doesn't feel quite as bad. For the most part, goblins seem to relish causing trouble and killing innocent people so they shouldn't be surprised when people attack first and ask questions later.

"You better not be lying," Bryony says sternly. She tries to get a read on the goblin to see if its lying. "What do you know about what happened in Phandalin at the temple and the miner's exchange?"

Insight - 12

Fergus:

”Oops,” says Fergus, looking at the goblin falling dead from his magical musical note.  “Everyone’s a critic,” he observes dryly, seeing no sign of the goblin escaping to the north.

Boona just stands nonplussed looking at the dead goblin.

Bryony finds their badly-wounded prisoner, still struggling against the massive serpent coils, to be a challenging read. She can't tell if he's lying.

"I don't know about no temples or exchanges," it squeals. "You got the wrong guy!"

It definitely looks different than the goblins they encountered on the trail, and at Cragmaw Castle. It's elongated head, for one.

Combat is paused. Everyone may act.

Fergus:

Unable to see the fleeing goblin, Fergus heads over to the conscious one and says, “You were with the goblins who stole rocks from various structures in our town.  This is your chance to avoid a painful death by telling us useful information.”

Persuasion:  13

Insight:  11

Jurgen will send Draco over to guard the prisoner with direction to attack if it flees or attacks anyone.

He goes over to the dead goblin and searches him for clues or evidence. 

Investigation: 14

Bryony tries to help Fergus persuade the goblin to give them more information. "Please," she says in her sweetest voice. "We won't hurt you if you just tell us what you know."

Bryony uses the Help and Fergus can roll with advantage!

Facing Fergus's threats and Bryony's charm, the goblin prisoner softens a little. "We were just told to take back some shards of some ancient obelisk," it babbles. "It was our first time away from home, you see, and we were just having some fun! We didn't hurt anyone! Well, except for that crazy lady who hit us. We hit her back, but she deserved it."

Jurgen finds nothing of interest on the dead goblin brawler.

Fergus:

”How interesting,” replies Fergus.  “Who sent you to find these pieces and where were you to deliver them?” he asks, trying to recall what ancient obelisks made of dark stone or obsidian might be in the area.

History:  4