Her excitement and joy were spurs, inspirations; but she was utterly impracticable in her ideas, and she flitted from one plan to another with bewildering vacillation.
Moreover, he fancied that she grew more eager, youthful, and sweet; and he marked that it was far easier to watch her and listen to her than it was to work.

Therefore he gave her tasks that necessitated her going often to the cave where he had stored his packs.
Upon the last of these trips, when he was some distance down the terrace and out of sight of camp, he heard a scream, and then the sharp barking of the dogs.
For an instant he straightened up, amazed.

Danger for her had been absolutely out of his mind.

She had seen a rattlesnake--or a wildcat.
Still she would not have been likely to scream at sight of either; and the barking of the dogs was ominous.

Dropping his work, he dashed back along the terrace.