内容简介：
It is twenty years since six-year-old Joshua Horton disappeared from his schoolyard leaving no clues. The kidnapping remains unsolved. His mother is convinced that Joshua is still alive and one day will return to her. Dr. Joshua Benton, raised in London, England by devoted parents, is hired by Harvard as a Scientist and Researcher. Joshua accepts the opportunity to work with the prestigious group in Harvard and moves to Cambridge, Mass. where due to a series of accidental events he finds himself engrossed in unraveling the mystery of the kidnapped Joshua Horton...