Jorzu 

Jorzu finds solace in Fergus' words. All he need do is open a door. "Open a door. I can achieve that. Door." He looks at Laiti, "Here goes huh? You come with me and let's see if we can manage some mischief" he continues to instruct Laiti to turn invisible and then follow him towards the door once the goblin has past their current position. He whips his hands around and gradually fades from sight. He waits for the goblin.

Stealth 16

Laiti Stealth 26

((Didn't add advantage. Let me know if it applies due to Invisibility))

Jurgen Stealth 14

Seeing everyone being very stealthy and knowing his armor makes noise, he carefully follows the group. 

Quinn’s stealth check: 18

Quinn gathers up his cloak and wraps it around himself to conceal all his gear. He crouches down low with his back up against a large boulder. He’ll do his best to keep his else peeling for any movement approaching from the tree line. 

(Group Stealth rolls: 10, 19, 19, 16, 26, 14, 18... Pass.)

You hide. Darkness comes to the mountainside. Those of you without darkvision see next to nothing.

But not after the last light vanishes, some of you hear the quiet footsteps of a barefoot goblin making its way through the ashen sand and scrabble. It's the goblin you freed yesterday.
It advances unhesitatingly to the double doors and bangs on them.

In Goblin:

 The massive doors open. You see a dim, eerie blue light within, but little else - just a hint of gray stone floor. You see no goblins nor any other living figures inside.

Fergus:

Maintaining his hiding place, Fergus doesn’t move until he hears the doors open.  Once quiet Regina again, he moves to where he can see in the direction of the door, waiting and hoping for a sign from Jorzu once he has done his work.

Jorzu 

Speaking to Laiti telepathically:

He takes off as quite as he can after the Sawplee goblin. He only hopes Laiti has done the same.

When they approach the door, Jorzu attempts to use his small size to sneak through undetected. 

Boona waits to be told what to do...

Fergus:

Whispering to Boona in the night, Fergus says, “Thank you for your patience.  If we can get in quietly, we have a better chance of getting to the abducted townsfolk before they can mobilize and perhaps deny us our rescue.  There will be time soon enough for unbridled fury…”

Quinn turns his head ever so slightly to look back at the door. He takes note of the blue light and his eyes track back and forth to the arrow slits.

Once the doors shut, he speaks out in a low voice so only those near him can hear.

"When we move, anyone who sticks close to me will be aided by a spell that will help you move more quietly."

DM: Can we see that blue glow emanating from the arrow slits as well? 

Bryony nods and moves closer to Quinn. "Ready when you are," she whispers. "Let's go find my family!"

Jorzu and Laiti vanish. The massive doors close behind the tiny goblin. All is dark and quiet again. (Jorzu – check your PMs.)

Shadows quietly deepen around Quinn. (Those within 30 feet of Quinn has a +10 bonus to Dexterity (Stealth) checks.)