00655cam a2200205 4500 62124612 TxAuBib 20011210120000.0 011210s1940||||||||||||||||||||||||eng|u 40006900 DLC EEM SER m.c. TxAuBib Dixon, Franklin W. The disappearing floor / by Franklin W. Dixon ... illustrated by Paul Laune. New York : Grosset & Dunlap, [1940] vi, 218 p. incl. front ; 20 cm. His The Hardy Boys Illustrated lining-papers. 20011210. His The Hardy Boys.