n the future, it’s possible to live forever—but at what cost? 
A.D. 2088. 
 
Missionary daughter Abigail Caldwell emerges from the jungle for the first time in her thirty-four years, the sole survivor of a mysterious disease that killed her village. Abby goes to America, only to discover a nation where Christianity has completely died out. A curious message from her grandfather assigns her a surprising mission: re-introduce the Christian faith in America, no matter how insurmountable the odds. 
 
But a larger threat looms. The world's leading artificial intelligence industrialist has perfected a technique for downloading the human brain into a silicon form. Brain transplants have begun, and with them comes the potential of eliminating physical death altogether—but at what expense?  
 
As Abby navigates a society grown more addicted to stimulating the body than nurturing the soul, she and Creighton Daniels, a historian troubled by his father's unexpected death, become unwitting t