Lest a movement of the grass or a splash betray her, Penny remained perfectly still. Shadows deepened on the river for night was fast coming on. Her muscles became stiff and cramped. The wind chilled her to the very bone, and the water which at first had not seemed unbearably cold, made her teeth chatter and dance. Each minute became an hour as the torture increased.
"I'll have to do something," she thought desperately. "I can't endure this much longer."
