The Boxcar Children．31，The mystery of the singing ghost / The boxcar children．31，The mystery of the Singing Ghost The Boxcar Children．98，The mystery of the runaway ghost / The Boxcar Children．42，The mystery of the missing cat / The boxcar children．40，The mystery of the missing cat The Boxcar Children．41，The mystery of the hidden beach / The Boxcar Children．67，The mystery of the stolen sword / The Boxcar Children．81，The mystery of the midnight dog / The boxcar children．39，The mystery of the hidden beach The Boxcar Children．35，The mystery at the dog show /