Warner, Gertrude Chandler, 1890-1979. Mystery behind the wall / [electronic resource] / Gertrude Chandler Warner ; illustrated by David Cunningham.. — New York : : Scholastic,, 1991, c1973.. — 127 p. : : ill. ; 19 cm. - The Boxcar children ; #17.
Анотація: A young Canadian visitor helps the Alden family solve a mystery involving a lost coin collection.
059042677X (pbk.) 9780590426770 (pbk.)
Mystery and detective stories. Detective and mystery stories.