Lost Lab of Kwalish

Sorry for the long rant. I rarely struggle so much with a ruling.  To refresh thi gs, there us a hallway with magma flowing out the far end doorway but only 20 ft, then it stops.  You've all managed to safely find yourselves in the room with the brazier and sconces.  Lighting the sconces allowed access to the left and right side doors.  There is one thing about the magma room that Leann or Huarache might have seen before falling back if they want to try a perception check.  

4 for Perception.

EDIT: Dang.

Soo. You guys want to try the left or right door or just wait for the magma to cool... or any othet action you come up with? 

Leann will move to the left door and simply open it.

The door opens to a narrow passage extending 20ft, then turning left,  and after another 20ft, left again.  Ten feet ahead, the passage opens onto a room 15ft wide by 25ft.

A large heavy metal grate sits in the center of this room. At the southern end of the room there is a door.

The door is locked. A DC 10 Dexterity (Sleight of Hand) check is required to unlock it.

"Someone want to check that door?" Leann asks as she moves to the grate and looks through it.

DM, is it Sleight of Hand or Thieves' Tools? If the former, 9. If the latter, add 3 to that.

What is with my rolls today?

OOC:I would say they've told makes more sense. The source calls for SoH, but I think we should revise that. 

The door opens as if on a spring or like mechanism one unlocked, revealing... a 5ft wide hallway extending 5ft before you reach another door!  This door is also locked (Dex DC15 this time)

(Ooc: in light of the fact that I previously posted the originally published skill, this can be either SoH or TT.) 

Leann observes that there is a hole in the floor about 5ft in diameter under the grate, which descends deep enough to prevent seeing the bottom with the ambient light the room provides. (I'm assuming she is not standing on the grate)

She is not standing on the grate. She would step back from it and nod to the others. "A hole leads downward below the grate." She informs them as she moves over towards the now-open door. She glances through and takes in the second door. "Why have a dor then just another door?" She asks out loud. "Who came up with this fun-house..."

Ooc: this is the second time you've seen a door behind another a door in this building. 

Just to remind, this is a pocket dimension Kwalish holed himself up in to study the mercurial, according to his notes, at least.  Its design is fundamentally defensive, to keep the mercurial from escaping, or being liberated by others.  Much of the building is not really a living space:  I think the room full of magma already gave that away.

21 for TT.

Ooc: (I just want to point out I didn't make this map... but I don't hate it.)

Huarache's skillful lockpicking defeats the second door, revealing 5 more feet of hallway and... another door. (It's also locked. DC 20 DEX (TT or SoH).

What do you want to do?

Huarache is going to look behind him to make sure that this space is Euclidean in nature (that he hasn't walked forward 10 feet but only appears to have walked two or so). If it appears to be, he'll go for the next lock. 11

The geometries in this space are Euclidean.  (Take an inspiration die for that one).  

Again,  Huarache manages to defeat KwLishs locked door.  Only to find... another door.

[If he checks, he'll find it is also locked. (DC 25. Dex as before)]

So where are Sam, Shutorn and Omiy right now? Looking at stuff,  hanging out around the grate? Making any perception checks, etc?

Huarache will begin to pick this one. It hasn't occured to him yet that this may be a weird time-wasting trick. However, as he lifts his tension wrench, he stops. "Omiy, can you see where the Rod of the Mercurial is pointing? I don't want to be picking the locks that keep it away from us."

It's on her back, I think.., so you can see that it's pointing north. Not that you would know it's North.  What even is north in a pocket dimension? You're facing a door at the southern end of the room you are in.

I guess the magma will be cool in another few hours. It was 5 to start.  This doesn't have to take an hour, but I'm pointing out that it's an option.  Also there's that door on the right.

Still wondering where Omiy Shutorn and Samogri are right now.

"Hmm," Omiy takes off the mercurial rod behind her back and watches as the glowing indicator pointing in the direction behind them. "You think we should go the other way?" She asks Huarache.

If the locked doors are leading away from the Mercurial, then Huarache will resume his picking. 22.