When digging his garden to lay a foundation for a new sundial, quiet, unostentatious bachelor Marcus Pottermack uncovers a previously-unknown well.  That same day, he receives yet another demand for money from the man who is blackmailing him, and it’s only a matter of time before one problem is used to solve the other.  And when curiosities about the man’s disappearance are raised in passing with Dr. John Thorndyke, it’s only a matter of time before that pillar of truth is on the trail of quiet, unostentatious Marcus Pottermack.  And yet, for all its conventional-sounding setup, Mr. Pottermack’s Oversight (1930) is a delightfully unconventional inverted mystery.

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