Lost Lab of Kwalish

Huarache will take note of those ingots because he would like to make adamantine half-plate later (it's 40 pounds and "reinforced with adamantine," rather than made of it, but I assume there is ordinary steel in a forge). And I vote going into the next room, but if we can stay a while here (however long it takes to smith armor), Huarache would like to make some armor for himself and possibly for others who need something better than starting armor.

Leann would be up for getting some full plate... She owuld be ok in moving to the next chamber though, for now.

Sam loook interested in the shiny ingots and will move into the next chamber

There's no reason you couldn't spend time here to make what you like, but here's what's in the next room:

ARMORY :

The dwarves' enemies coveted the riches of Hrakhamar. To defend their trove, the dwarves stockpiled weapons and armor in this chamber. The firenewts haven't  bothered most of it; they prefer their own weapons  over heavier dwarven designs, and the dwarves' armor  doesn't fit them. 

This chamber includes six each of battleaxes, great- axes, mauls, morningstars, war picks, warhammers, and heavy crossbows, plus two hundred crossbow bolts and four suits of dwarven half-plate armor.

(It seems to be half plate in order to avoid the full plate fitting rules, meaning any medium size humanoid could wear this stuff (barring wings or the like, which might need some modification.  Tails should be ok.)

Are they adamantium-reinforced? If not, Huarache will probably look for time to do that, and regardless, he would maybe like to make the other half of a set of plate for Leann.

When he has time, of course.

Dorian is very interested in the machinery and how it works, so he would take any excuse to spend as much time as possible studying it. "While I would, of course, love to have the kind of protection adamantine affords, I'm afraid I'm not skilled enough in armor or casting to be able to utilize both at once," he says regretfully. He brightens. "Still, there are many other useful applications of the material, let alone these machines. We can explore the the rest of this group of chambers (2-5 on the map) and the room across the way (6) and then come back here to rest for the evening and do any metalworking you'd like," he offers.

(Could Dorian look through the armory to see if there's any eleven chain, or the Dwarven equivalent?)

I guess we've seen everything of the armory. We go to the eastern door, I guess, to see what's on the other side of the bridge.

Dorian's search turns up no exotic armor.  A walk down the tunnel to the East leads to the bridge  you saw when you entered the magma chamber.  Crossing it leads to a another tunnel.  10 ft into the tunnel there is an opening to the left, 10ft beyond that two suits of dwarven half plate armor stand on either side of an adamantine-banded iron door. These suits of  armor were beautiful once, but now they're scarred by  weapons, scorched by fire, and smeared with filth. The  door has two locks, one above the other.

Huarache will cast Detect Magic to see if there's anything magical on those locks. If there's abjuration magic, Huarache will be very careful. If there's evocation magic, Huarache slowly backs away. If there's any other sort of magic, let's see what happens. Huarache will pick the locks.

21 and 17 to pick the locks, assuming you want two separate checks.

Not sure which roll for which lock, but as it happens, the result is the same either way.

You have spung a trap.

The trap causes the metal gantry between the treasury and the  forge (area 4) to retract west, leaving a 40-foot gap  across the magma. 

Also, you open the lock that was 24. Your choice.

Ctenmiir (or anyone else who reads Dwarvish) can tell you the top lock is embedded in an adamantine frame designed in the shape of the rune meaning "Beginnings"

The lower lock was set in a frame as well, but it is missing, leaving an impression of what once was there.

Ctenmiir examines the outline closely, 19 and just barely recognizes the missing frame as the rune meaning "endings"

I guess the bottom lock is open now.

What sprung the trap:

So, do I get to try to pick it again, or?

I guess. There's nothing stopping you.

“That’s very good trap” Sam looks around to see if anything would resets the trap 

investigation 4

“If everything seems fine to stay in we could use this a outpost or something on the lines on that” 

Your investigation reveals nothing new on the door or the immediate corridor, but the opening to the left leads into a small side chamber, a quick search of which turns up a curious box tossed into the corner. The box is made of iron and resembles a book, and it opens from both sides, rather like the front and back covers of a book. One side bears the dwarven rune for "beginnings," the other bears the rune  for "endings." Opening either side reveals the impression of a key in the iron plate. The original keys for the treasury were stored in this box.

Does Leann still have that key she found in the earlier room?  Also, does it appear to match the impressions at all?

It's busted to bits (according to ToA text, past what mending can fix) but it's pretty clearly the same key.