At last on the high level, seeing Blue could not bray his joy to the world, Billy Louise let him go. She needed some outlet, herself, after those horrible, dull weeks weighted with tragedy. She had been raised on horseback, almost; and for two terrible months she had not been in the saddle. And there is nothing like the air of the Idaho hills to stir one's blood and send it singing.
Through the sagebrush and rocks, weaving in and out, slacking speed a little while he went down into deep gullies, thundering up the other side, and racing away over the level again, went Blue. And with him, laughing, tingling with new life, growing pinker-cheeked every minute, went Billy Louise. Her mother's death did not oppress her then. She thought of her as she raced, but she thought of her with a little, tender smile. Her mother was resting peacefully, and there was no more pain or worry for the little, pale, frail woman who had lived her life and gone her way.
"Dear old mommie!" said Billy Louise under her breath. "Your kid is almost as happy as you are, right now. Don't be shocked, there's a dear, or think I'm going to break my neck. Blue and I have just simply got to work off steam. You, Blue!" She leaned another inch forward.
Blue threw up his head, lifted his heels, and ran like a scared jackrabbit over the uneven ground. They were not keeping to the trail at all; trails were too tame for them in that mood. They ran along the rim-rock at the last, where Billy Louise could glance down, now and then, at the river sliding like a bright-blue ribbon with icy edges through the gray, snow-spotted hills.