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Data via openlibrary
book
1927
The secret of the old mill
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Teenage detectives Frank and Joe Hardy investigate a case of counterfeiting.
Adventure
Mystery
Fiction
juvenile literature
Fiction, general
JUVENILE FICTION
children's fiction
Fiction, action & adventure
Fiction, horror
Reference books
Fiction, mystery & detective, general
Detective and mystery stories
Mystery and detective stories
Children’s
Joe Hardy (Fictitious character)
Hardy boys (fictitious characters), fiction
collectionID:HBMS1
series:HardyBoys
Frank Hardy (Fictitious character)
Hardy Boys (Fictitious characters)
Brothers -- Juvenile fiction
Hardy Boys (Fictitious characters) -- Juvenile fiction
Counterfeits and counterfeiting -- Juvenile fiction
Counterfeits and counterfeiting
