Mystery Behind the Wall
by Gertrude Chandler Warner, Liz Brizzi, David Cunningham · 1973
Popularity 27
A young Canadian visitor helps the Alden family solve a mystery involving a lost coin collection.
Juvenile fictionOrphansFictionBoxcar children (Fictitious characters)Brothers and sistersFamilyMystery and detective storiesCoinsFamily lifeDetective and mystery storiesCollectors and collectingFamilies