Screams greet you in the cobbled street from people running by, and a dust cloud billows into the sky in the distance, towering over the city's buildings. "Come on!" Roccar shouts, but he sprints toward the direction of the dust cloud without looking back.

Dear me. 

Rycider takes a handful of her skirts and takes off after Roccar.

Karst continues to try and keep up with Roccar as they head towards the dust cloud.

"Come on, let's not keep them waiting!"

Killian slows up a bit to take in the sight of the dust clouds, letting the more eager of the others rush past. Then she puts her head down and runs after them, wary of rushing headlong into a trap, but unsure what else to do at this point.

Running to keep up with Roccar, Aradurk looks frantically around to the source of the conflict. 

Tanakir continues running, casting detect magic to see if he can find the source of the explosion.

Gruun stays toward the back of the group making sure no one is left too far behind in the rush(if anyone can't keep up he'll carry them). He keeps his Greataxe ready in his hands and his head on a swivel as they run, watching for any ambushes or anyone following the group.

Wes casts mage armor as he begins to follow. 

The party arrives on the scene, confronted by a thirty foot crater in the cobblestone street. Bodies litter the ground. Moaning, wounded men and women crawl toward safety, and a few humanoid outlines have been scorched into nearby walls. Without ever looking back, Roccar dashes into the crater and starts helping people find safety.

Three bodies in the crater are still intact, laying motionless. There are also a few who seem unharmed: A man in sailor's garb, a plainly-dressed woman, a man in tattered clothing, and a dwarf in fine clothing, who is walking around and handing people small vials of some liquid.

For Tanakir:

For Gruun and Killian:

Rycider will approach the man in tattered clothing first

Are you alright mah dear? What happened here?

She will surreptitiously touch the crystal to the man.

Sleight of Hand: 19

Wes will immediately rush to the dwarf, touching the gem to the skin of the dwarf.  “What vials are you giving to everyone?”  His voice flat and stern.  Taking one of the vials.  For the first time for anyone paying attention you see Petunia gritting her teeth and a furrowed brow of aggression.  

Insight check on the dwarves response: 14

if Wes believes the dwarf to be lying, he will identify the liquid

Tanakir immediately begins giving his healing light to whoever seems the most wounded while going around to cast cure wounds on anyone else who needs it.

Killian will take in the scene, noting the dwarf, but will not rush down to help. Instead, she stands at the edge of the crater and looks around, trying to pick out anything that seems out of place. Someone watching (like she is), someone walking away calmly, anything strange.

Not exactly her skill set, but here goes. Perception: 17

Aradurk goes to the motionless figures in the crater, assessing their damage.
 Medicine: 20

Karst will also attempt to heal someone with injuries that warrent proper healing, whilst still staying alert to the possibility of ambush or further attacks.

Gruun will begin carrying people to safety or at least out of the way. He lacks skills of healing and will go to the dwarf walking around. "Bohmar, are those for healing the injured?" He will look questioningly at Wes and will reflexively grip his Greataxe until the gem touches Bohmar and he relaxes. "Wes, this is Bohmar. He is a cleric that helped us overcome evils on our mission."

Rycider:

Persuasion: 22

The man has a crazed look in his eyes, but does not change form when you palm the purple gem against him.

"No! Are you with her? Get away from me!" the man shouts, ignoring your questioning.

Wes and Gruun:

The dwarf responds to Wes with a boisterous laugh. "Why, these are jus' samples o' Bohmar Brineboots' Magical Elixir. Givin' 'em free to any what's hurtin'. Get 'em while they last!"

A young man holding one arm limply at his side accepts a vial and drinks deeply. He gasps in surprise as his arm starts working properly, able to move it once more.

"Oy, I remember ye, bugbear! I was wonderin' if ye made it back to Luskan unharmed. Aye, I heard the ruckus and grabbed all me samples I could from Bohmar Brineboots' Apothecary, where ye can find all the healing ye need!" he says, ending his statement loudly, for all to hear.

For Wes:

Tanakir and Aradurk:

The three forms in the crater are all in serious need of healing, but together you are able to stabilize and heal them. Though they are scuffed and covered in soot, you've saved their lives.

Killian:

It looks as though everything fits the scene. There is a growing number of onlookers, but all carry an expression of worry or fear. Those at the scene already look sufficiently terrified.

Aradurk starts asking the people that he and Tanakir helped from the crater for a description of what happened to the best of their recollection.

While Aradurk questions the people, Tanakir will touch the slaad detection crystal to each of them as he heals them.

Karst moves around the edge of the crater once the people seem in no further danger keeping a watch for further sings of danger, battleaxe at the ready.