He's trying to kill us--could ruin him--worry about that later--grab your sister and go.
Um. Okay, sure. "I can--help, better--with--" Kaaderid hasn't mentioned magic yet, she doesn't know that word in Leraal. She snaps her fingers and makes a spark.
And then she bolts, because whatever just happened probably means she's not welcome anymore. She dashes to the oasis, drinks as much water as she can hold, fashions a makeshift waterskin out of her skirt and magic, fills it, and runs off in a random direction as fast as she can sustain herself.
Well they're not mages she can run faster than them. ...Can she understand any of their yelling?
She doesn't like using Sympathy but she can. If she sharpens her vision temporarily can she see anything other than desert and mob?
Well, she was doing alright before she did magic. She memorizes its location, lets her vision go back to normal, and heads in that direction. When she gets within normal vision distance of it, she slows to a normal run, and then a walk. She drinks from her impromptu waterskin, then lets her skirt assume its normal properties and shoos the remaining moisture from it.
Will this continue if she uses her halting vocabulary to ask which way out of the desert?
Well, once she's out of sight of the town, she starts running magically again.
Well, what she does is walk upriver, based on the principle that it probably has a source somewhere that is not a desert. When she's in sight of settlements she makes sure not to be going fast enough to suggest magic.