She's venturing farther from home than she usually does today. She wouldn't do it if she had one of the younger kids with her - too big a risk of not getting home by nightfall - but she doesn't, she has Naomi and Anemone, and Naomi and Anemone can handle themselves. They're never gonna get any good stuff if they don't take a few chances, sometimes, when they can afford it.
So she's pretty far away from home - maybe forty miles, her team has bicycles and is serious about covering ground - when she spots some other people picking stuff over. This is not unusual. But these people look organized.
She stops her bike by one of the younger ones who's a ways away from the others. "Hey. You guys from somewhere?"