A desperate, but highly respectable schoolmaster collapses at Holmes' door. His prize pupil, the son of a wealthy duke, has vanished, seemingly without a trace. And, why is Holmes getting such poor cooperation in his investigation?
Overview：A desperate, but highly respectable schoolmaster collapses at Holmes' door. His prize pupil, the son of a wealthy duke, has vanished, seemingly without a trace. And, why is Holmes getting such poor cooperation in his investigation?
