Night, the Defy Danger is Dex, trying to jump out quickly and land securely. 2+5+0=7.
It's difficult finding handholds when you can't see your own hands, but you manage to lower yourself down the wall to a position where you can safely hit the ground without more than minor discomfort. However, having to concentrate on all of that and maintain the delicate magicks that flow around you is no picnic;
take -1 to INT and WIS checks until you have a moment to catch your breath, or you drop the invisiblity spell, whichever comes first.
I have traded with Bareth before, as he manages to come into possession of relatively valuable materials and magical trinkets from time to time. Upon entering the city I've contacted him to check out his wares, but only briefly. He mentioned offhand he was working on acquiring something special, I told him to update me on any progress. Shame his malodorous temperament got him tossed out of a window (wasn't his first, probably won't be his last). I wonder who came to his aid in this case?
Unsurprisingly, the street is utterly deserted despite the time of night; nobody (but you) is there to witness a shabby man in patchwork clothing haul the injured fireworks merchant to his feet. Bareth is blabbering, desperately, face contorted in pain.
"I told ya, I told ya, I told ya you should've just let him have his damn cut... he was just supposed to be in sales and now cos you and yours wanted him out he said he's gonna have the whole operation to himself in a matter of weeks!" the fat-faced merchant whines, grimacing.
The patchwork man is maneuvering him around the glass with delicate care, back towards you and the front of the Golden Koi. "You offered him an out..." he says, letting the words hang. A scream echoes through the night behind you.
"That I did," nods Bareth ruefully, one twisted arm hanging by his side, "and look where it got me. Why, uh, why are you... why are we, um, going back in there?"
There is a silence, and you can see the smile of the other man gleaming white in the darkness. "I've just made Sergeant Zhao a very rich man," he says, "and I intend to ensure he earns his keep."
---
Deken, you have ample time before the stranger and Bareth reach you, slow and carefree as their pace is. But there are screams above and groans and shouted orders coming from the first floor of the Golden Koi behind you.
What do you do?