{"product_id":"the-disappearing-floor-9780448089195","title":"The Disappearing Floor","description":"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.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eBinding Type:\u003c\/b\u003e Hardcover\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Grosset \u0026amp; Dunlap\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 05\/01\/1940\u003cbr\u003e\u003cb\u003eISBN:\u003c\/b\u003e 9780448089195\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 192\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.54lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 7.96h x 5.02w x 0.73d\u003cbr\u003e\u003cb\u003eAccelerated Reader Quiz #\/Name: \u003c\/b\u003e5658 \/ Disappearing Floor\u003cbr\u003e\u003cb\u003eReading Level:\u003c\/b\u003e 5.6 \/ \u003cb\u003eInterest Level:\u003c\/b\u003e Middle Grade \/ \u003cb\u003ePoint Value:\u003c\/b\u003e 5\u003cbr\u003e","brand":"Franklin W. Dixon","offers":[{"title":"Default Title","offer_id":43112006844597,"sku":"9780448089195","price":9.34,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0473\/0804\/6492\/files\/img_7332e07e-820e-4694-b79d-73ab030645fd.jpg?v=1693926670","url":"https:\/\/pastforward.org\/products\/the-disappearing-floor-9780448089195","provider":"Past Forward","version":"1.0","type":"link"}