Oh, very well then.
She keeps climbing. She ascends the easy route off to the right. It goes up about 20 feet. The others down below lose sight of her a bit and have to walk around on the rocky side of the rapids to catch sight of her again. She is not belayed at this point.
Where Anna is now, it is extremely obvious even to a non-ranger that someone climbs further up from this place. Handholds have been dug and there's wear marks where a rope has been lowered and used over time.
She climbs further - a roll of 40, which is a bit more unsteady, but still a success. After about 30 more feet, she comes, very suddenly, to the mouth of a small cave, totally hidden in aspect from the ground.
At the mouth of the cave is a woman in late middle age, with greying red her, wearing a dirty green dress, who is pointing a home-made spear at Anna.
"Don't try anything or I'll spit you," say the woman.
"Who are you and what are you doing up here?"
Anna is still on the lip of the cave and has her feet on a rocky ledge. The woman has Anna covered and has automatic initiative. If Anna tries to attack her or enter the cave, she will attack Anna automatically, with considerable bonuses, and Anna will be likely to fall.
You can play Anna now...