New Books In Science Fiction

Where does DNA end and the soul begin? It’s a question that Evelyn Caldwell, the brilliant genetic researcher at the center of Sarah Gailey’s The Echo Wife, never asks as she develops her award-winning technique for human cloning, which takes DNA from “sample to sentience” in 100 days. In The Echo Wife, clones are tools, created for specific time-limited purposes—to serve as a body double to draw fire from potential assassins, for example, or to provide donor organs. The question of a soul never enters into it. “Clones aren’t people. …They’re specimens,” Evelyn explains. “They’re temporary, and when they stop being useful, they become biomedical waste. They are disposable.” Evelyn’s attitudes evolve when her ex-husband, Nathan, secretly uses the Caldwell Method to create Martine—a new wife scaffolded from Evelyn’s DNA but modified to be more docile and easy going. Because of Martine’s compliant nature (and complete reliance on Nathan for her knowledge of the world), Martine is eager to provide Nathan with the