Helen could not see a sign of a trail they left behind.

Indeed, it would take a sharp eye to follow Dale through that forest.

This knowledge was infinitely comforting to Helen, and for the first time since the flight had begun she felt a lessening of the weight upon mind and heart.

It left her free for some of the appreciation she might have had in this wonderful ride under happier circumstances.
Bo, however, seemed too young, too wild, too intense to mind what the circumstances were.

She responded to reality.