Nothing happens when Tempest attempts the spell. Arcana check to see if you can figure out more.

Gadvelt, you see that the drow that are in the guardhouse quickly grow bored watching the cell and give it only casual glances after a few hours. Eventually, watching long enough, you see that they change shifts around every 8 hours or so. You see the rope bridge is well made and strong, and you hear shifting around from sounds like way below it, which would probably be the giant spiders.

Arcana check:  8

Jimjar reaches up and shakes Tempest's hand. In Undercommon:

No idea why the spell failed, or why your familiar is still here.

Don sits next to the quaggoth and begins drinking a bowl of broth.

He turns to him and says, in Elvish:

The quaggoth shakes his head. In elvish:

Don frowns at the quoggoth. In elvish:

Seeing Tempest attempt magic and fail, Egret will pick up a small pebble in his hand, reach out of the cage and attempt to cast Light on the pebble, if it works, he'll quickly close his hand to hide the light, and then draw his hand back in to see if it still works inside the cage.

(OOC, also, would he have felt whether or not his casting of Guidance earlier worked?)

Either way, he'll then grab a bowl of broth and eat with every sign of enjoyment (low standards). As he eats, "Now that they think they've put us in our place, having thwarted an escape attempt while most of us stood by and did nothing, perhaps they'll be overconfident and more lax giving us an opportunity to escape. Or maybe we can get the disgruntled, demoted drow to help us out in revenge against the new guy."

(Also, was he able to make a noose with his rope?)

(Noose was made, yes)

Give me an arcana check on the guidance. The pebble stays dark, because you don't have the material component required, or a focus to cast the spell.

13

(Forgot about that part)

Don sees Egret and Tempest fiddling around, trying to cast magic and will turn back to the quaggoth and ask, in elvish:

Thinking back, you don't remember any signs that the spell worked at all, Egret. 

The quaggoth replies:

 The quaggoth starts getting visibly angry, starting to pace around and slam its fist into the rock.

Don frowns and tries to calm the quaggoth, in elvish: 

 Don leaves the quaggoth and approaches the imprisoned drow. Keeping a respectful distance he says, in elvish:

Give me 2 persuasion rolls, Don. One for each.

(The one for the quaggoth at advantage)

Quaggoth persuasion: 25

Drow persuasion: 15

The quaggoth calms down, and just sits and slumps against the wall, head down.

The drow looks up at you warily, and says in elvish:

Quote from Mattan_Braddus >>

Gadvelt, you see that the drow that are in the guardhouse quickly grow bored watching the cell and give it only casual glances after a few hours. Eventually, watching long enough, you see that they change shifts around every 8 hours or so. You see the rope bridge is well made and strong, and you hear shifting around from sounds like way below it, which would probably be the giant spiders.

 (can I get distance / direction / layout of the tower, bridge etc please?)

Seeing that the Drow is a bit of a short fuse and is obviously concerned with his memory, Don will play along and try and trick him into divulging information. In elvish:

The hanging tower, upon further study, is a hollowed out stalactite dropping from the ceiling of the cavern. It connects to the pen you're in by the rope bridge, which looks to be made of spider silk and difficult to cross. The rope bridge is about 30 ft long. You can't really tell what the interior of the tower looks like from here, you can just see the 3 drow in the upper part of it at a window cut out of the rock.

Don, give me a charisma check.

Charisma: 10