TY - BOOK AU - Dixon,Franklin W. TI - Footprints under the window T2 - Hardy boys mystery stories SN - 0448089122 U1 - [Fic] 21 PY - 1993///, c1965 CY - New York PB - Grosset & Dunlap KW - Mystery and detective stories KW - Mystery fiction KW - sears N1 - 6.5; Follett Library Resources; 5-8; Follett Library Resources N2 - Frank and Joe uncover a plot to steal a vital top-secret instrument of the space program ER -