Aina has not secured any invitations to social engagements with her Cool Friend, so she's at home, collecting a bedtime snack from the kitchen.

Alonso and his family are sitting together in their room of the house. His little sister is reading aloud from the constitution of Andoran. 

Permira has gone out and bought the freedom of another girl with the usual mix of implicit threats and "you know abolition is going to come so you might as well get some money out of it" and is taking her home and explaining that she is completely free and can do whatever she likes and has a room here if she's willing to pay a percentage of her wages at whatever job she gets towards freeing more people and paying rent. Her new cousin is nodding along.

By the time they reach the right block, the mob's grown. It's not one of the big mobs, but it's big enough to be scary. They advance down the street with cries of burn the diabolists and kill the slips and freedom for Cheliax and, in one case, glory to Aroden. (Livi thinks the Arodenite is stupid. Aroden is dead. But being stupid doesn't matter if he's going to help.)

How flammable is the house looking?

Pretty flammable! It is wood and not in great shape, as evidenced by the fact that the halflings could afford to rent a whole huose.

Great! The mob continues to advance towards the house. They're not really trying to be quiet; if the halflings are paying attention to what's going on outside, they'll probably be able to hear it.

Well shit. 

What if they exit the house from the other direction and run away. 

"That's some of them. Not all."

What a great idea! Exit! Exit quickly!

... Not her. Everyone else.

Aina flees out the back without thinking twice about her companions upstairs and heads in the opposite direction from the others.

Upstairs, her companions notice the advancing mob, but aren't yet sure it has anything to do with their house specifically.

Some of the mob continues to advance on the house! Some of them start running after the halflings, waving various threatening implements! One guy tries to shoot them with a crossbow but he's not very good at it.

...Oh, shit, Alonso recognizes that voice. 

What a hateful asshole. 

After slowing to a stop for a brief discussion, the women bolt in three different directions while Alonso turns back to the mob. 

"Barro! Your mother was a drunkard and your father was a worm!" 

He'll still try to escape, of course. But if he can keep the crowd focused on him, and not his mother and sisters--

Permira will step out, showing the arcane mark on her hand, walking steadily forwards.

"Every one of you will be burned alive by the archmage if you do this! Every one!"

The three halflings who shared Aina's room notice that they have a problem. One flings a half-finished bolt of cloth down the side of the house out the window, tied to the bed, so they can try to climb down.

Alonso will move around to be closer to Permira, but not too close--enough that they prevent a single coherent focus for the mob, but not so much that they can both be grabbed at the same time--

That slip has no right to say things like that. He goes at it with a knife.

(Someone with a torch reaches the house and attempts to set it on fire. Several people are trying to charge Permira. A few people start trying to chase down the fleeing halflings, but not most of them.)

(Further back, some people are looking nervously between Livi and Permira.)

Did Livi know that Alonso also has a knife, and a size bonus to AC? 

Alonso is mostly trying to get away, but if he goes down, by all the gods, he's not going to leave his killer unscathed. 

Aina's squeezing through a fence that is too narrow for humans and crossing somebody's yard to get to the next street and out of sight.

Her friends are having a hard time climbing down the bolt of linen.

Permira is going to charge the people charging her, knife in hand. She'll see how many she kills before going down.

Ow! What the Hell! Die, you fucking bastard!

No one tries to follow Aina.

The Arodenite guy is trying to help this clearly righteous delegate take down the violent slip attacking him. There's more people running up behind them. If Alonso wants to make a break for it it needs to be now and he needs to be lucky.

The rest of the people with torches have reached the house. One of them has the bright idea of setting fire to the cloth.

Permira can get in several blows before anyone manages to hit her.

Once the cloth is on fire the three halflings slide much more heedlessly to the ground and do their best to scatter.

Wow, they weren't expecting that. Most of the people with pointy weapons are focused on other halflings. Some of the torchbearers by the house are now attempting to use the torches as improvised weapons.