[Carol Stream, Ill.] :, Oasis Audio,, 
1 online resource (1 sound file) : digital.
The summer camp mystery
The copycat mystery
The haunted clock tower mystery.
The summer camp mysery: The Boxcar children investigate the theft of the camp flag and contest ideas when they participate in the camp olympics at summer camp. The copycat mystery: A series of practical jokes at a restored nineteenth-century farmhouse makes the Aldens wonder if the ghost of its builder is at work. The haunted clock tower mystery: The Aldens accompany their grandfather to his class reunion and investigate the possibility of a buried Civil War treasure, and of a ghost in the bell tower, at Goldwin University.