Title: Mystery Behind the Wall (The Boxcar Children Series #17), Author: Gertrude Chandler Warner
Title: Bus Station Mystery (The Boxcar Children Series #18), Author: Gertrude Chandler Warner
Title: Benny Uncovers a Mystery (The Boxcar Children Series #19), Author: Gertrude Chandler Warner
Title: Caboose Mystery (The Boxcar Children Series #11), Author: Gertrude Chandler Warner
Title: The Woodshed Mystery (The Boxcar Children Series #7), Author: Gertrude Chandler Warner
Title: The Lighthouse Mystery (The Boxcar Children Series #8), Author: Gertrude Chandler Warner
Title: Schoolhouse Mystery (The Boxcar Children Series #10), Author: Gertrude Chandler Warner
Title: Mountain Top Mystery (The Boxcar Children Series #9), Author: Gertrude Chandler Warner
Title: Snowbound Mystery (The Boxcar Children Series #13), Author: Gertrude Chandler Warner
Title: Mystery in the Sand (The Boxcar Children Series #16), Author: Gertrude Chandler Warner
Title: Tree House Mystery (The Boxcar Children Series #14), Author: Gertrude Chandler Warner
Title: Bicycle Mystery (The Boxcar Children Series #15), Author: Gertrude Chandler Warner