In a future racing toward extinction, two sisters stand at the heart of humanity’s final hope—and its deepest moral failings.
Charlie Tannehill has always followed the rules. Maggie? Not so much. But when the world discovers an expiration date encoded in our DNA, survival becomes less about rules and more about ruthless innovation. Now teenagers, the sisters enroll in a controversial government breeding program, where genetic experimentation meets desperate ambition.
As Maggie sacrifices everything for scientific success, Charlie questions whether saving humanity is worth losing their humanity. Torn between her love for her twin and her growing horror at the ethical lines being crossed, Charlie faces an impossible choice.
If she fails, the human race could disappear forever. But success may cost her sister’s soul.
Would you save the world—even if it meant destroying yourself?
