num_pages: 128
description: When the Alden children join a group of volunteers to fix up an old house for senior citizens, they try to explain the puzzling behavior of their coworkers as well as investigate some unusual events.
language: English
title: The Disappearing Staircase Mystery
titlecomplete: The Disappearing Staircase Mystery (Boxcar Children Mysteries, 85)
genres: Mystery, Fiction, Classics, Childrens, Chapter Books, Middle Grade, Audiobook
ratings_count: 525
places: The United States of America
series: The Boxcar Children
publisher: Albert Whitman & Co