Dixon, Franklin W.

The submarine caper / Franklin W. Dixon ; illustrated by Leslie Morrill. - New York : Wanderer Books, c1981. - 187 p. : ill. ; 20 cm. - The Hardy boys mystery stories 68 . - Dixon, Franklin W. Hardy boys mystery stories. .

On a visit to Germany the Hardy brothers investigate the theft of plans for a newly invented submarine and the mysterious disappearance of valuable coins and paintings.

ISBN: 067142338X : 0671423398 (pbk.) :

Subjects--Topical Terms:
Mystery and detective stories.

Subjects--Geographic Terms:
Germany--Fiction.