(Assuming someone lights a torch and steps in...)

Three old barrels stand in the middle of the hallway by the eastern wall. The wood appears to be in bad condition. Though the area appears to have remained dry over the years, the barrels have slowly decayed with the passage of time. One of the barrels appears to have no lid. Just beyond the barrels is a closed metal door on the western wall. On the eastern wall appears to be a hallway that leads elsewhere.

I'd like to know marching order and what you'd like to do. (Exploring, checking the barrels, something else?)

Copper will stalk ahead of the group, staying just ahead of the torchlight. The axe is gripped in his hand and his eyes continue to glow, scanning for any trace of magic. At the intersection, he will peak his head around the corner and glance down the hallway.

(Keeping up Detect Magic, and I'll roll for stealth and perception on discord)

(rolling on discord as well)

Kinnik can hold the torch at the front:

Perception: 21

Copper sees that the east hall seems to open up southward, but he'd have to walk down the hall to see what's there - whether its another hall or a room. There doesn't seem to be any trace of magic. Just dust particles that fly up from his movement on the ground. 

Kinnick and Copper, read the spoiler:

 (Sorry Copper, forgot you had rolled perception as well)

Vasha will follow along the western corridor (just before the barrels) and try peeking around the corner.

(Stealth: 5. Perception: 10)

All the dust in the air causes Vasha to sneeze several times at the end of the hallway.

Uninterested in the strange baubles, Copper will step across the hall and with a quick jerky motion, he hacks at the rusted lock.

Attack: 17 Damage: 8

(Wisdom save: critical failure)

Kinnik lets out a craw! and begins to stuff his pockets full of baubles

Olen lights one of his own torches and follows behind Copper and Kinnik.

When he gets to the barrels, he stops and looks into the open barrel.

Investigation check to search the open barrel for anything of interest or value: 22

Shroud, read the spoiler left for Kinnik and Copper.

Copper easily destroys the lock. The door slowly swings open a crack. It's dark in that room, but you don't hear anything on the otherside of the door.

Copper continues his momentum and kicks the door wide open. "Knock knock." he says sarcastically. Once open, he'll peak inside.

Perception: 18 (also just assume he keeps up Detect Magic at all times, except in battle when he'd need to concentrate on another spell)

Olen sees what Kinnik is doing and begins to help him.

"Here, this one looks like it could be worth something. Hmm, oh and this one."

Olen hands Kinnik any that he thinks are possibly worth some coin. If any are not at all shiny or pretty, Olen would pocket them instead, for later, possible sale.

(Ah, I had to double check. You took Eldritch Sight. Just make sure to tell me if you ever change that Invocation to something else!)

This looks like a storeroom of sorts. There is thick dust here as well, but you do spy several golden coins laying atop a counter. There are also closed cabinets in here.

Copper - You wonder if anything valuable could be found here, though you don't detect any magic whatsoever. You do notice, however, that while there is a thick layer of dust, it seems disturbed here and there. 

(Kinnik and Shroud, feel free to put - random trinkets from Cannith - in your inventory and we will sort the exact details of that later.)

(way ahead of you)

Olen finishes stashing items in his pockets with Kinnik, and heads into the room behind Copper, to see what he has found.

"What have we got Copper? Find anything of interest?"

Olen runs his eyes over the room, holding his torch high so has to be able to see.

Perception check to notice anything of interest: 12

You don't really see much different, Shroud. It seems like a store room caked in dust. There are gold coins on the counters and possible objects of value stored in the cabinets. It was a Cannith Foundry after all.

(Perception: 13)

Gold... coins..? Kinnik's pupils dilate and he freezes over the piles of trinkets. Eons later he moves, stiffly and robotic. 
Objects of value?!  Knees nearly turned to jelly he stands in the center of the room and takes it all in. He looks to Shroud for permission, half-certain that he will try to stop him from going crazy in this Candyland. His robe is off and fashioned into a makeshift loot bag in the span of three breaths. 

Seeing the excitement building in Kinnik, and the makeshift bag he has formed, Olen offers some words of caution.

"Look, I'm with you on the collecting of, well almost everything, but I would suggest you do your best to determine if something is safe, before you grab it."

"If you aren't sure if something is safe, or if you want help to get something you are sure is dangerous, let the rest of us know. Working together, we can collect a lot more and get out with our hides intact."

Olen flashes a mischievous grin,

"Otherwise, go for it Kinnik, the more we collect, the more we could make in the resale."

Olen then walks over to the cabinet and examines it for traps or locks, or anything else of interest, before he tries to open it.

Investigation check on the cabinet: 19

"Think it's mostly junk. Does look like someone has been in here recently though. Maybe that warforged?" he says disinterested, and leans against the doorframe while his friends investigate further.

Olen turns back to Copper,

"What? Someone has been in here?"

Olen looks around now spotting the disturbed dust. He follows the patterns in the dust trying to determine what may have made them, and where they came and went from.

Investigation check to try to determine anything about the tracks: 4