During the investigation of the Agra treasure case, Holmes and Watson recall another case that Holmes had investigated earlier. The King of Bohemia comes to Holmes under a false name, who at first behaves somewhat arrogantly, and then plaintively asks for help. At one time, the king, then still the crown prince, had an affair with the famous adventurer Irene Adler, took a photo with her and signed the photo as a keepsake. Now he is going to get married and wants to avoid a scandal...
