Inching through rush-hour traffic at the age of sixty-three, it dawned on Marilyn that she was also inching through life. At that moment, she decided to make the journey of her dreams--a long vacation, a year or more alone in a van. She spent months preparing to escape her settled home and habits, and in June of 2004, she got on the road. Destination: Alaska.A lifetime of memories accompanied her. As she drove, explored, and hiked, she pondered her...