She always ran away, and right here may be noted the significance of the naming of her.

She was a better climber than Lop-Ear or I.When we played tag we could never catch her except by accident, while she could catch us at will.

She was remarkably swift in all her movements, and she had a genius for judging distances that was equalled only by her daring.

Excessively timid in all other matters, she was without fear when it came to climbing or running through the trees, and Lop-Ear and I were awkward and lumbering and cowardly in comparison.
She was an orphan.

We never saw her with any one, and there was no telling how long she had lived alone in the world.