I didn't realize, I'm sorry. Do you have something on hand to tie it with?
Bella pulls her hair into a braid - she can't quite manage "none sticking out" but she can make it look like she tried - and does her best to get a ribbon around the end, although the task seems to require three hands. She winds up cheating with a little effortful telekinesis, although she has to stop walking to do it.
That's weird and spooky but she does not want to be a difficult guest for these creepy cult people aaaaaaa
Master Aulë her guest thinks, a rush of emotions accompanying the words - joy, awe, devotion - My honored friend has just arrived from distant lands, and has a knife that is enchanted not to cut her, but that needs to be enchanted not to cut anyone.
Bella scrambles to unbuckle the sheath from her jeans and put it on the ground in front of her, head bowed.
And he - takes shape, perhaps - out of the air in front of them - like a cheerful bearded man, except too big, and too perfect, to quite seem like a man, and he's still emanating the effortless raw power. He picks up the knife. He sets it back down. There you are, dear. May you use to to craft many beautiful things; may all Valinor find joy in your creations.
Bella is trembling very badly as she goes to buckle the knife back in place.
She manages to get the knife back where it was.