A Case of Identity

 In The Five Orange Pips, a young Sussex gentleman named John Openshaw tells the strange story of his uncle Elias Openshaw, who came back to England after living in the United States as a planter in Florida and serving as a colonel in the Confederate Army. His uncle begins receiving threatening letters inscribed “KKK” and including five orange pips. He is killed shortly thereafter. The job of unraveling this sordid transatlantic mystery falls to Holmes and his trusty companion, Dr. Watson. 

Dr. Watson recounts that a masked visitor to Baker Street is quickly deduced to be the hereditary King of Bohemia. The King is to become engaged to a young Scandinavian princess. However, five years before, he had a liaison with American opera singer, Irene Adler. Fearful that the marriage would be called off, he had sought to regain letters and a photograph of Adler and himself together. The ensuing adventure involves disguise, subterfuge and Holmes' legendary powers of deduction.

In The Adventure of the Speckled Band, Sherlock Holmes and Watson come to the aid of Helen Stoner, who has reason to fear her life is being threatened by her abusive stepfather, Dr. Grimesby Roylott. Her sister, who died two years before, spoke of a "speckled band" right before she died in mysterious circumstances. To solve the mystery of the "speckled band", Holmes and Watson stake out Miss Stoner's room and make a momentous discovery. The eighth of the 12 stories collected in The Adventures of Sherlock Holmes, Doyle considered it the best of the Holmes stories.

In "The Boscombe Valley Mystery", Inspector Lestrade summons Sherlock Holmes to a community in Herefordshire, where a local landowner has been murdered outdoors. The deceased's estranged son is strongly implicated. Holmes, employing his trusty magnifying glass quickly determines that a mysterious third man may be responsible for the crime, unraveling a thread involving a secret criminal past, thwarted love, and blackmail.

In "The Adventure of the Noble Bachelor", Miss Hatty Doran, after several strange episodes on the day of her marriage to Lord St. Simon, disappears from the reception. St. Simon tells Sherlock Holmes that he noticed a change in the young lady's mood just after the wedding ceremony, having been uncharacteristically sharp with him. Also unusual: she dropped her wedding bouquet and a gentleman in the front pew handed it back to her.