The Boxcar Children Collection, Volume 4

In "Schoolhouse Mystery," the Boxcar Children take on the role of teachers in a quaint New England fishing village, uncovering secrets hidden in an old library frequented by a mysterious stranger. In "Caboose Mystery," they find themselves living in Caboose No. 777 during a summer train adventure, where they learn about the car's intriguing past. Finally, in "Houseboat Mystery," the Aldens enjoy time on a houseboat but soon realize they are being watched by someone desperate for what lies aboard. Each story weaves captivating mysteries that challenge the children’s ingenuity and courage.