A #1 New York Times Bestselling Author A Captain Chase Novel

On the eve of a top-secret space mission, Captain Calli Chase
a NASA pilot, quantum physicist, and cybercrime investigator
detects a problem in the tunnels below a NASA research center. She discovers dried blood, a missing security badge, and a suspicious suicide. This series of disturbing clues point to Calli s twin sister, Carme, who s been missing for days. Desperate to avoid disaster and clear her sister s name, Captain Chase races to find answers for her twin s erratic conduct. But time is running out, and she realizes that failure means catastrophe
for both the space program and the safety of the entire nation.