"The three gables": A woman calls for an investigation after she is offered a lot of money to sell her estate. "The dying detective": A woman is convinced that her cousin is putting her family in jeopardy. "The golden pince-nez": Scotland Yard is troubled with a murder investigation and no promising leads. "The red circle": Holmes and Watson are called upon by the landlady of a rooming house who is afraid one of her tenants is up to no good. "The mazarin stone": Watson strikes out on his own as he searches for a young man who has been sending strange messages to two sisters. "The cardboard box": a trio of sisters get into a fight that leads to murder.