The secret of Pirates' Hill /
Dixon, Franklin W.
The secret of Pirates' Hill / Franklin W. Dixon. - New York : Grosset & Dunlap, 1972. - 178 p. : ill. - His Hardy boys mystery stories, 36 .
Hired to locate an old Spanish cannon, the Hardy brothers uncover an even greater treasure after perilous underwater adventures.
044808936X
Mystery and detective stories.
PZ7.D5 1972
The secret of Pirates' Hill / Franklin W. Dixon. - New York : Grosset & Dunlap, 1972. - 178 p. : ill. - His Hardy boys mystery stories, 36 .
Hired to locate an old Spanish cannon, the Hardy brothers uncover an even greater treasure after perilous underwater adventures.
044808936X
Mystery and detective stories.
PZ7.D5 1972