Download or read book Mystery Up the Winding Stair written by Helen Fuller Orton and published by HarperCollins Children's Books. This book was released on 1948-01-01 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Harry spends an adventurous three weeks at his grandfather's house. Strange things begin to happen, including sounds in the night, mysterious intruders, and the finding of hidden staircase. All this leads to the surprising climax and the finding of a precious gem.