A convicted thief in Dartmoor prison hides the location of the stolen Bank of England printing plates inside three music boxes. When the innocent purchasers of the boxes start to be murdered, Holmes and Watson investigate.
1960
1929
1950
2019
1924
1944
1949
2021
2023
1958
1982
2009
1986
1968
1956
1965
2000
2018
1973
