Cloud Atlas meets Orphan Black in this epic dimension-bending trilogy by New York Times bestselling author Claudia Gray about a girl who must chase her father's killer through multiple dimensions.

Marguerite Caine's physicist parents are known for their groundbreaking achievements. Their most astonishing invention, called the Firebird, allows users to jump into multiple universes--and promises to revolutionize science forever. But then Marguerite's father is murdered, and the killer--her parent's handsome, enigmatic assistant Paul--escapes into another...