Mystery Behind the Wall
By: Gertrude Chandler Warner ; illustrated by David Cunningham.
Contributors: Cunningham, David, 1938-
Series: The Boxcar children -- #17
Publisher: Scholastic
Published: 1991
Place of publication: New York
Language: eng
Number of pages: 127
ISBN-13: 9780590426770
Subjects: Mystery and detective stories.; Detective and mystery stories.
Description: A young Canadian visitor helps the Alden family solve a mystery involving a lost coin collection.