Scales a cliff with Alia on her back

“Just don’t drop me.”’
“You weigh about as much as a heavy pair of boots.”  Diana picked her way through the big boulders wedged against the base of the cliff.  “I need my arms to climb, so you’re going to have to hold on with your legs, too.”
“Climb?”
“The cliff.”
You’re taking me up the side of a cliff?  Are you out of your mind?”
“Just hold on and try not to strangle me.”  Diana dug her fingers into the rock and started putting distance between them and the ground before the girl could think much more about it.
She moved quickly.  This was familiar territory.  Diana has scaled these cliff countless times since she’d started visiting the north shore, and when she was twelve, she’d discovered the cave where they were headed
...
At last, Diana hauled them up into the divot in the rock that marked the cave entrance.