Dixon, Franklin W. author New York Grosset & Dunlap 1990 eng 180 p. ill. A banker who has been receiving threatening notes enlists the help of the Hardy boys. Before long, the young sleuths find themselves entangled in the investigation of a notorious band of thieves. [Fic] 9780448089119 000031/00003155.jpg 000031/00003155.jpg BR-BrIDEA 118598