"Oh, Rob! how can you?" exclaimed Nelly, but the driver touched his horses with the whip, and they were off. What a drive that was for Nelly! She never forgot it. It was her first sight of the grand Rocky Mountains. The city of Denver lies on a great plain; about thirty miles away stands the mountain range; between the city and the mountains runs a river,--the Platte River,--which has green trees along its bank. Mrs. Williams took Nelly out on high ground to the east, from which she could look over the whole city, and the river, and out to the beautiful mountains. Some of the peaks were as solid white as white clouds, and looked almost like clouds suddenly made to stand still in the skies. Mrs. Williams loved mountains very much; and, as she looked at Nelly's face, she saw that Nelly loved them too. Nelly said very little; but she kept hold of Mrs. Williams's hand, and, whenever they came to a particularly beautiful view, she would press it so hard that once or twice Mrs. Williams cried out: "Dear child, you hurt me: don't squeeze so tight;" upon which Nelly, very much ashamed, would let go of her hand for a few minutes, but presently, in her excitement, would be holding it again as tight as ever. Mrs. Williams was a widow lady: she had lost her husband and her only child--a little girl about Nelly's age--only two years before, and she had been an invalid ever since. As soon as she saw Nelly's face in the cars, she had fancied that she looked like her little girl who was dead. Her name was Ellen too, and she had always been called Elly; so that Nelly's name had a familiar sound to her. Mrs. Williams was a very rich lady; and, if Nelly's father and mother had been poor people, she would have asked them at once to give Nelly to her. But, of course, she knew that that would be out of the question; so all she could do was to try to make Nelly have a good time as long as she was with her. After they had driven all about the city, and had seen all there was to see, she said to the driver: "Now go to the best toy store in the city." Nelly did not hear this direction: she was absorbed in looking at the mountains. So she was much surprised when they stopped at the shop, and Mrs. Williams said:-- "Now, Nelly dear, I want you to go in and buy something for me: will you? I can't get out of the carriage myself." "Yes indeed," exclaimed Nelly, "if I can; but I never went into a shop alone in my life. Mamma always goes with me. Can't I bring what you want out here for you to look at?" Mrs. Williams laughed. "You'll be a better judge of it than I, Nell," she said. "It is a wax doll I want for a young friend of mine,--just about such an one as you had in the cars."