Don takes a step toward the salamander then disappears in a cloud of mist. //Misty Step// He reappears behind the creature and attacks.

Rapier Attack: 15 Damage: 10
Sneak Attack: 12
Green Flame Blade: 1

Matrix is down!

death save 14

Crownsguard plants the flaming blade into the ground and grips his Giant Slayer with two hand. He then levels it to the salamander gripping Matrix, “You are in violation of my request. Lethal force is now authorized to exorcise your existence from this plane. Thank you for your understanding.” He “revs” his hilt as a Thunderous Smite courses through his blade.

Crownsguard closes the distance and brings his blade toward the creature’s neck, Attack: 27 Damage: 21 magic slashing damage. If that hits, the salamander takes 2 thunder damage and must make a DC 15 STR Save or be pushed back 10 feet, which would break its grapple on Matrix.

Furthermore, he’ll swing again, Attack: 15 Damage: 12 magic slashing damage

//Forgot Hex Damage... again 6

Flint casts healing word at Matrix: 7

Flint steps forward to confront the critter and attacks with his hammer of moradin

Attack: 11 for 11

It's too much for this elemental. The salamander bursts into a blaze of fire and molten material, hitting Flint, Crownsguard, and Don for 7 fire damage. The monster's body then vanishes into nothingness, likely back to the plane from which it came.

The other salamander continues to run away from you, back the way that you had come. The way into the mines is once again open to you, and the distant pinging of axes on stone is growing louder.

Matrix does that cool martial artsy flip stand move, winces in pain, and aims at the slithering salamander. "screw it" and fires two Kensei shots

14 for 5 + 4

12 for 12 + 3

The fleeing salamander is hit twice in the back. It turns around, screeching in an unpleasant, grating tongue, and rushes towards you!

// What are the rest of you doing? //

Ink

Ink releases the spike of ice (reaction).

Attack: 21 Damage: 6 piercing plus Damage: 15 cold

The ice spike hits the wall next to the salamander, but then explodes in a snowy blast, wounding the monster.

Then, Ink backs up and draws his longbow, firing two quick shots at it...

Attack: 8 Damage: 9 piercing
Attack: 18 Damage: 12 piercing

The arrows find their target, but seem to bounce off its armor, not doing as much damage as one would expect. 

As the salamander turns to fight, he finds himself confronted with a charging robot, "It is my understanding that you have also elected forcible expulsion. Your request has been accepted." He baseball swings his blade toward the salamander's neck, Attack: 27 Damage: 19 magic slashing damage. Missing, he spins, Attack: 16 Damage: 12 magic slashing damage + 1st level Smite: 16 radiant damage!

Flint moves towards the salamander and casts sacred flame dex dc14 or 4 radiant. 

Don grins, goes running toward the salamander, "C'mon, can't let bucket head have all the fun." he then disappears into a cloud of mist reappearing behind the creature.

Rapier Attack: 14 Damage: 8
Sneak Attack: 9
Green Flame Blade: 8
Hex: 3

CG takes 5 fire damage, and Don takes 8 fire damage as their attacks strike the elemental.

Matrix will fire two more times, all piercing dmg

10 for 13 + 2

18 for 6 + 3

(That does it!)

The elemental bursts and melts away like the other one had done. 

The sounds of mining have ceased. The tunnels are eerily quiet.

 (Do you wish to continue on?)

Crownsguard walks over and picks up his blade, igniting it once more, “We should continue. What is our plan?”

"We continue, but I'm pretty sure they know we are here." he turns toward Matrix but still continues to talk to Crownsguard, "but some of us are very loud fighters."

The salamanders has apparently been watching over a large group of slaves— eleven shield dwarves and seventeen rock gnomes in total. The prisoners are split into groups of two or three. Some were using picks or shovels, while others had been pushing carts down ramps. All of them wear ankle shackles. They look at you slack jawed.

One of them, a gnome, pipes up: “Was that noise you lot? Did you fight them? Are they dead?”

Don walks over, "Yeah they are dead. Mind if I take those off you now?"  He kneels down without waiting and begins to work on them.

Dexterity (with proficiency and expertise bonus): 27

Don finds the locks on the prisoners' shackles incredibly easy to deal with. In a matter of moments, the grateful dwarves and gnomes rub their feet and say thank-you to Don and the rest of you. 

One of the dwarves says, "There are more slaves further down, in Ironslag. I don't know why you're here, but if you defeated those slithering fire snakes, I suppose you might stand a chance at rescuing the others. Thank you, strangers."

If they aren't otherwise stopped, the gnomes and dwarves make for the surface, glad to be free and eager to return home.