"On the eve of a top secret space mission, Captain Calli Chase detects a tripped alarm in the tunnels deep below a NASA research center. A NASA pilot, quantum physicist, and cybercrime investigator, Calli knows that a looming blizzard and government shutdown could provide the perfect cover for sabotage, with deadly consequences. As it turns out, the danger is worse than she thought. A spatter of dried blood, a missing security badge, a suspicious...

Captain Calli Chase races against time to thwart a plot that leaves the fate of humanity hanging in the balance in this new thriller from international bestselling author Patricia Cornwell. In the aftermath of a NASA rocket launch gone terribly wrong, 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,...