While the Hardy Boys investigate the theft of valuable antique weather vanes from Pennnsylvania Dutch farms, their father tracks down a Pentagon employee who ha

Originally published: New York: Simon & Schuster, c1980.

Discover the definitive history of DARPA, the Defense Advanced Research Project Agency, in this Pulitzer Prize finalist from the author of the New York Times be

First valuable antique weather vanes are stolen in Pennsylvania Dutch Country and Frank and Joe are hired to catch the thieves. Meanwhile, their father is asked

Shaffer delivers an exciting, eyewitness account of fighting terrorism in Afghanistan using the military's most cutting-edge espionage tactics. Just before St.