A 14-year-old boys efforts to save his parents troubled marriage and uphold his dementia-afflicted grandfathers final wishes are shaped by a ghost who cannot rest until past debts are paid. By the best-selling author of The Art of Racing in the Rain. Simultaneous. A fourteen-year-old boys efforts to save his parents troubled marriage and uphold his dementia-afflicted grandfathers final wishes are shaped by a ghost who cannot rest until past debts are paid.