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.
Series: Hardy Boys Mystery Stories
Length: 175 pages
Height: 7.8 x 5.3 x 0.5
Weight: 1 lb.
SOG: Very Good, book tight, no torn/missing pages, no writings/marks, normal shelf wear, see photo for more detail
Two of the Hardy Boys's chums take a motor trip down the coast. They disappear and are almost rescued by their friends when all are captured. A thrilling story of adventure.