Series numeration from Fantastic Fiction.

In the aftermath of a sabotaged NASA rocket launch gone, Captain Calli Chase comes face-to-face with her missing twin sister, as well as the startling truth of who they really are. Now a top secret program put in motion years ago has spun out of control, and Calli embarks on a frantic search for the missing link between the sabotaged rocket launch and her predetermined destiny. But it's a search that someone else is very interested in stopping. -- Provided by publisher.