num_pages: 128
description: When an elderly friend is injured, the Alden children offer to help him with his window-washing business in their small town of Greenfield and agree to help him solve a riddle that has arrived in a mysterious invitation.
language: English
title: The Mystery of the Spider's Clue
titlecomplete: The Mystery of the Spider's Clue (The Boxcar Children, #87)
genres: Middle Grade, Classics, Childrens, Fiction, Mystery
ratings_count: 307
series: The Boxcar Children
publisher: Albert Whitman & Co