Payne Harrison's electrifying bestseller, Storming Intrepid, was "a stunning success...a literally out-of-this-world chess game of nuclear proportions" (Baltimore Sun). His next thriller, Thunder of Erebus, was hailed as "a grand military epic" (Dallas Times Herald). Now this acclaimed master of technological fiction presents a powerfully convincing novel of the ultimate government secret... Forbidden Summit In a granite fortress near Colorado Springs lies the nerve center of America's early warning system. Known as Cheyenne Mountain, it conceals a small army of technicians who sweep the skies with their sensors, searching for any threat to national security. Reporting for duty on a cold December night, NORAD intelligence officer Frank Hannon considers graveyard shift inside the Mountain to be strictly routine. This time, it isn't. Four unidentified aircraft are sited and tracked on a controlled descent over North America. Hannon quickly alerts his superiors. The official response--or lack of it--is puzzling. Now, with forty-seven days before his retirement, Hannon launches his own investigation. A strange and startling journey that will take him through a twisting maze of government lies to a desolate summit on a desert mesa. There, far from public eyes, the truth is waiting...