* Story contains bad language
Threatening notes are sent to a brilliant inventor, apparently from a former rival for the affections of a young lady.
Holmes is called in to investigate the murder of Sir Eustace Brackenstall, apparently during a burglary.
Confined to a room in an exclusive club during an important dinner, Father Brown notices some unusual sounding footsteps.
Lestrade consults Holmes when a number of busts of Napoleon are smashed at various locations around London.
Up-and-coming detective Stanley Hopkins consults Holmes about the apparently motiveless murder of the secretary of an old professor.