Grix is following Thorin, giving him perhaps 15 ft (noting the amazing Stealth roll he made with disadvantage) - Halberd leading....

Thorin can see several more doorways down the hall, and at the end is another one with white light spilling out of it.

(DM Question - where does the trail lead down this hall? Is it going to the room with the light? & how far to the door with light at the end?)

https://imgur.com/S63SSN3

Yes the trail leads down to the room with the light. It's about 40 feet.

(DM - so just want to confirm if you've played it that Thorin has already looked in that 3x3 room on the right? If not, then I'll add in the spoiler bit, otherwise, disregard :) )

Thorin motions to Trinity and Grix and whispers, "I can see some light ahead an' the trail leads to it. But there's a few rooms here either side along the way. Be careful." 

 And with that, Thorin slips around the corner, moving slowly up to the first door on the left, and peaks into it (perception: 22).

On the right, Thorin can see one Wight.

The room on the left also has two Skeletons.

Thorin turns around to Trinity and Grix, putting his finger to his lips for them to stay quiet. He points to the room on the right and holds up one finger, then points the left room and two fingers. He waits a moment for that to sink in, then points to each room and shrugs as in "Which one should we do first?"

Abzerilan says in a hushed tone, "Noise in one will get the others' attention. Might as well go for the biggest threat first."

In equally quiet voice Grix adds "I can follow up stay in the hallway...if the skeletons come I can engage them, otherwise I can attack the other at range"

If Abzerilan and Thorin enter the first room Grix will follow up but stay outside in the hallway such that he can defend against the skeletons if they are drawn to the noise (noting that he will get a reaction strike if the skeletons get within 10ft) and he will Eldritch Blast the wight.

Thorin nods silently, then suddenly disappears into the room on the right that contains the wight (stealth: 12).

Sneaking up on the wight, Thorin suddenly slashes it with his hand axe (Attack: 10 Damage: 6; in case of advantage here is extra attack roll: 24). Focusing his ki (using one ki point), Thorin then unleashes a flurry of blows on the wight, hitting it two more times with his fists (Attack 1: 23 Damage: 5; Attack 2: 11 Damage: 3)

OOC: If you will allow, Grix would've been inclined to cast Protection from evil and good on Thorin if he was going to lead the attack on the Wight.

Giving Thorin the chance to hopefully surprise the creature, Grix waits for the sound of the first strike before moving up the corridor to get line of sight on the Wight and cast Eldritch Blast at the creature and will rely on reaction attacks to defend against the skeletons if they approach.

Eldritch Blast: 19 Damage: 5

OOC: Need to establish Initiative - do you roll for all or do we all give you a roll plus modifier  9  <- Initiative Roll if needed

OOC: Just checked difficulty rating of an encounter with Wight, 2 Skeletons against 4 (have assumed 1 has gone AWOL) x 2nd level PC's = DEADLY, just thought you should be aware.....and ensuring that some buffs are in place might balance the odds.

http://dhmstark.co.uk/rpgs/encounter-calculator-5th/

Abzerilan inititative: 17

Abzerilan will approach the wight and strike it, his weapon aglow with holy light.

Attack: 19 Damage: 7

If a hit, he will spend a spell slot for Divine smite

Divine smite damage: 12

Thorin's initiative: 10 - just in case.

Trinity follows in, she lets out a scream and then slaps her hands together.

Casting chaos bolt.

3

Attack: 7 Damage: 16 + 6 damage.

The first roll was to determine damage type, a 1 is acid.

Wild surge 8

Way to waist a nat 20 on a wild surge, at least I didn't cast fireball.

(OOC - oh man, wild mage! I'd love to play a wild mage, but a lot of DMs are like nope :( This is gonna be super interesting!)

https://imgur.com/fIisHAb

Just guessing, but i would imagine we would be somehting like this......

(Ok so first off, yes Thorin can have protection from evil and good on him. It doesn't much matter now though because the wight is dead. Second, the skeletons have heard all this. Oh and the wight was dead before Trinity's Chaos Bolt so if you want to take that back I will allow it. Third, yes if you could all roll initiative, even though this will be over very soon. And fourth, you all have some pretty powerful items from the Vaults that you insisted on taking. Again though, the wight is dead now, so you don't need them, but for the future. There are still more rooms.)

So skeleton 1 comes to the doorway of the room, which will give Grixeor opportunity attack against it. If the attack doesn't kill him, he will continue to whoever is closest and attack them.

Shortsword: to hit 7, damage 3