1972 Riddle of the Lonely House Strange Pettingill Puzzle Seaman Vintage Fiction In good vintage condition with typical wear from use and storage and some writing on cover. 166 pgs If you hear me tap three times, let me in as quick as you can"! Alan disappears, leaving Pete and his sister Chris alone in the darkness of the deserted house. What is the secret of the old mansion? Why has the missing document never been found? What does it all mean - the strange footprint, the broken door, the sound of footsteps in the empty house Tons more toys, collectibles, paper, antique, vintage ephemera, maps, engravings, prints, vinyl, vhs, media, books, bags, handmade and more! Will combine shipping! DWI1