The Pentagon Spy - Hardy Boys, No 61 Author:Franklin W. Dixon Small-time crooks lead to big-time spies - and the Hardy Boys have no time to lose! While investigating the theft of several valuable Pennsylvania Dutch weather vanes, the Hardys uncover a startling twist in the case. The stolen weather vanes point directly to the nation's capital - and to a serious breach in national security! A classified docu... more »ment has disappeared from the Pentagon. Frank and Joe follow a trail of clues from Pennsylvania to Washington to the Chesapeake Bay. There they confront a ruthless gang of foreign agents determined to make off with top-secret plans for a vital nuclear submarine guidance system!« less