The Hardy Boys
(#6), “The Shore Road Mystery,” by Franklin Dixon, New York: Grosset and Dunlap, 1992, 1928.
Nancy Drew Mystery Series
(#21), “The Secret in the Old Attic,” by Carolyn Keene, New York: Grosset and Dunlap, 1970, 1944.
The Hardy Boys
(#118), “Danger in the Fourth Dimension,” by Franklin W. Dixon, New York: Pocket Books, a division of Simon and Schuster, Inc., 1993.
Nancy Drew
(#108), “The Secret of the Tibetan Treasure,” by Carolyn Keene, New York: Simon and Schuster, Inc., 1992.
The Hardy Boys Detective Handbook
, by Franklin W. Dixon, in consultation with Special Agent William F. Flynn, FBI, Retired, New York: Grosset and Dunlap, 1972.
