The missing chums /
by Franklin W. Dixon.
- New York : Grosset & Dunlap, c1990, c1928.
- 175 p. : ill. ; 20 cm.
- Hardy boys mystery stories ; 4 .
- Dixon, Franklin W. Hardy boys mystery stories ; 4. .
When the Hardy Boys set out to solve the mystery of their missing chums, they discover a gang hide-out in a cave on an island along the way.