"Nice to meet you Luna." Emma crouched next to the girl, a frown furrowing her forehead quickly. She reached out to touch where Luna had, trying to be gentle, but bloody hell, that didn't look good. She didn't want to scare her, though, instead biting her lip hard to keep from talking.
"Look, I'm going to do a bit of a first aid sort of spell, just to stop the bleeding." Which was about all Emma could do. She knew three first aid spells: one to invisibly splint bones to keep them from breaking further, one to stop bleeding, and properly carry bitten off digits back to hospital to get them spelled back where they belonged. But she was used to using them on creature damage, not on a bumped head. "Just... stay still. I don't have to cast this often. Does it hurt anywhere other than your head?"