"I know, but it doesn't mean much to me."
"Does the altitude trouble you?"
"You mean Marshall Pass?"
"Yes. In part, but you know Denver is over five thousand feet. Some people find it very trying at first."
"Perhaps I might have found it so if I had stopped to think. But I had something else to think of. You know I had a ridiculous sensation, just as if I were going to fall off the world. Now you speak of it, I really think I did gasp occasionally." She looked up smilingly at Firmstone. "I suppose you are so accustomed to such sights that my enthusiasm seems a bore."
"Do you feel like gasping here?"
"No; why do you ask?"
"Because you are a thousand feet higher than at Marshall Pass, and here we are three thousand feet below the mine. You would not only have the fear of falling off from the world up there, but the danger of it as well."
Miss Hartwell looked from the office window to the great cliff that rose high above its steep, sloped talus.
"I told Arthur that I was going to see everything and climb everything out here, but I will think about it first."