In Pursuit of the Dead

Holmes and Watson travel to the Lake District after Squire Foley confesses to being haunted by a man he believes he killed in a duel. Upon returning to London, they delve into a woman's abduction under strange circumstances, and later, Inspector Lestrade seeks their assistance with odd occurrences at the National Gallery. A perplexed priest also asks for help regarding the unusual behavior of his colleagues, leading Watson to uncover a common thread among these mysteries. Holmes is determined to bring to justice what he describes as "probably the most evil woman I ever hope to encounter."