She blinked a little when he smirked at her, and for some reason, in that moment, it occurred to her that she was having an adventure! A roguish, dangerous bad guy was smirking at her! A bright grin burst across her face, full of nothing but innocent, childish delight, and she nodded quickly and began digging through her pack for one of the curved steel needles she kept on-hand for just such an occasion.
"I'm gonna use horsehair," she said, still smiling a little to herself as she got to work, "because silk has to be cut out by someone who knows what they're doing, and horsehair will just dissolve. It might take a little longer, but there's no harm in having a gut-wound reinforced for a while longer."
She threaded one of the long, white hairs through the needle, and then repositioned herself a little closer to him and bent herself over, pinching the wound closed with one hand and beginning to stitch it with the other. She was careful and precise, and if it took a little longer than others might have taken, the stitches were pretty petching straight considering they were done by a ten year old.
She tied off the knot and cut the thread with her teeth, then returned the needle to its proper place. Another ladle-full of water was sluiced over his side, and she washed her hands again before she dug through the medicine kit and unwrapped a packet of powder to brush over the stitches. The trickle of blood that had been steadily drip-dripping from the gash stopped almost immediately, scabbing over as if by magic.
"There. Now, be careful not to twist about if you can help it," she said, a little ruefully, as if she didn't really believe he'd manage that but it was worth saying it. She picked up the bandages that his comrades had brought over and motioned for him to lean up so she could wrap him up properly. "What's wrong with the other one?" she asked with a curious glance to the tent.