"The general, whether mentally unbalanced or not, had all the bearing of a military man. He was of medium build and stocky, with a ruddy complexion, blue eyes, and red hair. ... Frank remembered what his father once had told him about dealing with a mentally unbalanced person. If treated politely and gently, the person might react normally. Only if shocked or upset would he reveal any mental aberration."
Dixon, Franklin W., The Hardy Boys: The Secret of the Lost Tunnel, (New York: Grosset and Dunlap, 1950), 3.