An elderly gentleman, a professor and savant, living in quiet retirement, is greatly mystified and annoyed by a nightly visitor, who flits through his study and rummages around his desk. In ... Read allAn elderly gentleman, a professor and savant, living in quiet retirement, is greatly mystified and annoyed by a nightly visitor, who flits through his study and rummages around his desk. In his growing embarrassment the professor appeals to the police, who make a thorough search ... Read allAn elderly gentleman, a professor and savant, living in quiet retirement, is greatly mystified and annoyed by a nightly visitor, who flits through his study and rummages around his desk. In his growing embarrassment the professor appeals to the police, who make a thorough search of the professor's apartments, but fail to discover even the faintest clue to the solution... Read all