@article{74938, author = {Warner, Gertrude Chandler, and Cunningham, David,}, url = {http://library.usi.edu/record/74938}, title = {Mystery behind the wall /}, publisher = {A. Whitman}, abstract = {A young Canadian visitor helps the Alden family solve a mystery involving a lost coin collection.}, recid = {74938}, pages = {127 p. :}, address = {Chicago,}, year = {1973}, }