Cassidy has her grandparents, Jack and Sarah, and her Great-Grandma; and they have her. And all of them have what may be eternity. Memories can be relived, or shared. The wonders of the world they left behind are only a thought away. And the one-way tyranny of aging is no more -- a white-haired and stooped great-grandmother one moment can be a laughing young playmate the next. But nothing can ease Cassidy's longing for her mother, Eleanor; and Jack and Sarah know better than to hope that Eleanor's life has been a happy one.
Eleanor never wanted to leave the daughter she loved so much. The overpowering urge to wander -- to search, without knowing what she sought -- drove her away. She left Cassidy in her family's loving care. But Cassidy and the others died in an accident before Eleanor could find her way home.
Now, they are all reunited, with the chance to understand and heal. But the restlessness that shaped Eleanor's life still haunts her in death. Somehow, she must solve the mystery of her life -- or none of them will be at peace.