Denise Berg, a psychologist, and her molecular biologist husband, Gabe, expected an intelligent child. When Denise gives birth to Zack, they are astounded by their son’s gifts and his goodness. 

By every parameter, Zack is extraordinarily gifted, and his parents are proud of their genes and good fortune.

What Denise and Gabe don’t know, however, is that Zack’s gifts are the result of more than good luck and family genes. They depend on genetic material from an unusual source. As Zack’s abilities attract others with less-than-benign interests, his parents are left wondering who their son is—and whether they can save him and his gifts from a sinister world.

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