The Hardy Boys
The Submarine Caper
About this book
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.
The Hardy Boys · 107 books
In publication order- The Stone Idol 1981
- The Submarine Caper 1981 This book
- The Vanishing Thieves 1981
- Game Plan for Disaster 1982
Subjects
- children's fiction
- collectionid:hbms2
- fiction
- hardy boys (fictitious characters), fiction
- mystery and detective stories
- series:hardyboys