His first instinct, in a flash of burning fury, is to stab Ernesto and be done with it. But he hears Coco calling out, her father begging him by name, and he turns his attention back to his newest patient.

"Just breathe, miss Rivera," he advises. His voice is steady. "You'll be fine."

He kneels, placing a hand on her back as he works quickly to reverse the damage the blade has done, to seal the wound and stop the bleeding and make things as they should be. It's not the worst injury he's ever healed, but it's one of the most important treatments he's ever had to do.

He can feel, through his magic, the slight warp that means there will be a scar there, small though it is. He leaves it; later, she can decide what to do with it, if she wants to touch it at all.