Unquiet

For most of her life, Lirael has been training to kill—and replace—a duplicate version of herself on a parallel Earth. She is the perfect sleeper-soldier. But she's beginning to suspect she is not a good person. Fans of eerily futuristic and beautifully crafted stories such as Never Let Me Go, Orphan Black, and Fringe will find themselves haunted by this unsettling debut.

The two Earths are identic...