 Jacin Clay, a pilot who brought Sybil to Cress's satellite, decides to join Cinder's side, while the almost fatal wounding of Wolf renders him unconscious, and Sybil leaves Thorne and Cress to die after shutting down her satellite, making it hurtle toward Earth without a way to stop it.Meanwhile in Africa, Dr. Erland has discovered that Lunars are able to contract a mutated form of the letumosis virus which they had previously been immune to.The crew has now been separated from one another and Cinder is sure that not only are Cress and Thorne certainly dead but Scarlet will soon have the same fate as will Wolf if she doesn't get him medical attention.