A story of crime chiefly connected with diamond mines. A series of stories of mysterious crimes and strange events. The problems are solved, not by a commonplace detective, but by a master of psychology. The stories are ingenious, and the man of science works only for the good of humanity.
A story of crime chiefly connected with diamond mines. A series of stories of mysterious crimes and strange events. The problems are solved, not by a commonplace detective, but by a master of psychology. The stories are ingenious, and the man of science works only for the good of humanity.
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