"That's okay. You know that, right? Some of the people our age have no idea about anything, depending on the world you're from. I had a friend called Mary who wouldn't have known a date from a hole in the ground, and I'm pretty sure she'd be more interested in the hole in the ground."

Actually Harrow and Mary Lennox are quite similar, when she stops to think about it.

"You'll pick it up as you go."