01227cam a2200325 i 4500 345713580 TxAuBib 20040813120000.0 750521s1964||||||||||||||||||||||||eng|u 9780448089195 trade 044808919X trade 9780448189192 lib bdg 0448189194 lib bdg (OCoLC)1349053 AOP AOP OCL OCLCQ TOY TxAuBib rda Dixon, Franklin W. The disappearing floor / by Franklin W. Dixon. New York : Grosset & Dunlap, 1964. 176 pages : illustrations ; 19 cm. txt rdacontent n rdamedia nc rdacarrier Hardy boys mystery stories ; ; 19 While Frank and Joe help their father locate a notorious jewel thief, they also explore the mysterious death of a tycoon's nephew years before. 20040813. Hardy Boys (Fictitious characters) Juvenile fiction. Jewel thieves Juvenile fiction. Mystery and detective stories. Hardy boys mystery stories ; ; 19.