The Opal, the symbol for encouragement of positive emotions, teaches us that what we put out, comes back to us. Such are the underlying messages of this collection of Stronger Today stories: A WWII captain drags a tattered rug into a foxhole, comforting his troops during one of their fiercest battles . . . A mentally ill former employee holds a supervising nurse hostage. She emerges after forty-eight hours with multiple gunshot wounds, but with a...