Crush will continue to walk after the dwarf, not being stealthy but also not being visibly hostile. 

Sebastian Stonetooth goes down the steps and makes a left down a corridor. If Crush follows, he sees him stop at a door with two large half orcs standing guard. He says something to them and enters the room, shutting the door behind him. 

Usul shrugs, thinking to himself "Guess that's what happens when you try to do things on the up and up..." and will then see Crush walking after the dwarf ((others behind him?)), and will try to sneak back into the shadows to follow. stealth 19

Sen slouches in the shadows, staying near Crush but hopefully out of sight, waiting to see if the guards or Crush do anything.

Crush would walk up to the two half orcs and give them a nod and a grunt "Move, Crush have business with Stonetooth" He will say loudly as he stands up as straight tall as his large frame will allow. Then after pausing for just a second, he would roll his shoulder and slowly move his head in a circular motion as his neck cracks loudly "I not spill blood in while..." The orc would say as he curls his lips enough to show of a few of his almost tusk-like teeth "Should I spill some now?" The orc would say as his hands slide to the handles of his axes.  

Intimidation: 15

The half-orcs look at each other and shrug, and step aside to let Crush pass. Once Crush enters the room, they move to block anyone else from coming in. Sen is now standing in front of the guards, his back pressed up against the opposite wall. There are doors on each side of the hallway, but they're not directly across from each other. Sen is between two other sets of doors with no guards in front of them.

Usul is coming down the stairs and is hidden now only because the half-orcs are rattled by Crush's intimidation and wondering what Sen is up to.

Usul will go down to Sen and ask "Where'd the big guy go? What about the rest of the group? This is feeling dangerous..."

Sen walks a little way away with Usul, so that he can at least try not to be overheard by the two guards.  He went in.  After the dwarf.  I think he impressed the guards.  He might get in trouble when Stonetooth realises Crush doesn't actually have business with him.  Or if he does realise what our business is.  Or if Crush hits him.  Or, you know, speaks....

Usul replies, chuckling "heh, yeah... that is likely to happen. But there isn't much we can do from out here other than wait and watch. I wonder what everyone else is up to..."

Veryes is going to continue to hang out at the bar and see if the other brother shows up. She nods to the bartender in thanks for pointing out Sebastion walking downstairs, orders a drink and says "So good sir, I had thought both brothers would be here tonight? Are you expecting the other as well?" She puts down double the cost of the drink (let me know what that is) 

Persuasion if needed: 6

Because I'm, well me. I'm going to re-roll that :)

Persuasion: 17

The bartender says, "How do you know they aren't here already?"

Aria hears this and immediately stands up and turns around to face both Veryes and the bartender now... "Clearly we don't... is it really that hard to answer the question?"

The bartender looks at Aria and says "You girls don't get out much, do you?" and rolls his eyes in the direction of the stairs Crush, Usul, and Sen went down.

Meanwhile...

Crush walks into the back room. There is a table setup in the middle of the room with several people sitting around it - Sebastian Stonetooth, who has his back to Crush, another two dwarves, two Drow, and an older human. There are stacks of gold and silver coins in front of each man. There are benches built into the three other walls of the room, which are currently occupied by weapons and armor and several crates (think about the size of milk crates). A couple of other dwarves and drow are standing near the benches. There are ten people altogether in the room. Crush enters and it takes a few beats for anyone to notice him - but soon everyone in the room, except for Sebastian, have eyes on Crush. They aren't happy to see him. The retainers near the benches go for their weapons but the human motions for them to hold for a moment. He says to Crush,

"My son, I think you made a wrong turn at Neverwinter and have found yourself in a den of vipers you want no part of," he pauses to check the cards he's being dealt by one of the drow. "It would be best to see yourself out before any of these sinful miscreants attempt to recruit you for their myriad causes." 

He's going to try to persuade Crush to leave but at disadvantage because Crush's intelligence is so low, there's no way he understood all of those words. 8

EDIT: He rolled a 1 on his persuasion check so I'll let you decide what that looks like. Obviously he didn't talk Crush into leaving. 

"You offer Crush job?" The orc would grunt with a small tilt of his head before making his way to the man but continuing to keep his gaze mostly fixed on Sebastian. "Crush interested but ... have question for Stonetooth first" He would grunt as his rattling armor and heavy thuds of his boots fill the room as he makes his way closer to the dwarf.

Aria whispers to Veryes.. "Was that an observation or an insult? And how did he know I don't get out much... that's a rather rude assumption." 

Sen settles down and waits for what he expects to happen, that suddenly Crush will come bursting through the door, weapon drawn and covered in blood.  He sighs, and crosses his fingers.

Veryes chuckles at Aria and shrugs "I don't know. I get out plenty so jokes on him!"

Looking towards the stairs she says to Aria "Well, I haven't heard fighting yet so that's a good sign but I should probably see if Crush needs his interpreter yet... You ready?"

She slides the drink she just bought to whoever is closest to her at the bar and says "This ones one me". 

She then makes her way (Assuming with Aria) to the stairs and heads down.

Quote from BTI_Brian >>

She then makes her way (Assuming with Aria) to the stairs and heads down.

 yup

In the hallway:

The two half-orc guards standing outside the door see Aria and Veryes come down the stairs and join the idle Sen and Usul. They're a little unsure about what's happening.

The standoff between the six of them is broken when one of the doors across the hallway opens and Sunkx walks out with a woman on each arm, very clearly inebriated. "Heyy!" he shouts at the party. "It'ssh you! Ha! Sooo.. how's life?" he hiccups. One of the women laughs.

In the room with Crush and the Stonetooth brothers:

The human gives Crush a stunned look at the mention of a job offer. "No, that's not what I --" he sighs, but before he can gather his thoughts, Sebastian Stonetooth is up and out of his seat to face Crush down (size differential not withstanding). His brother, still seated at the table, says, "Easy, Seb - what's your story, big man? What business do ya think ya have with us?"