TY - GEN AU - Dixon, Franklin W. TI - The Hardy boys mystery stories T2 - The Hardy boys mystery stories SN - 9780448089195 U1 - [Fic] PY - 1992/// CY - New York PB - Grosset & Dunlap N2 - Once again Frank and Joe Hardy take on a puzzling case when their famous detective father asks the boys to assist him in tracking down a notorious jewel thief and his accomplices. The trail leads to the outskirts of the Hardys' home town and to a weirdly guarded mansion on the old Perth estate. With their pal Chet Morton, the brothers must tackle the mystery of the mansion heir's sudden death. A disappearing floor, a huge, savage-looking, hound, a galloping ghost, and a college professor's startling invention are just a few of the strange elements that complicate the boys' efforts to solve both mysteries UR - 000031/0000315d.jpg ER -