In the Boscombe Valley Mystery, Turner kills his blackmailer McCarthy to prevent McCarthy's son marrying his daughter and claiming all of his property. In the Adventure of the Blue Carbuncle, Holmes foils Mr Ryder's plans to steal a precious jewel and frame a plumber for the crime. The Adventure of Silver Blaze tells of how a trainer tries to injure his horse in order to win a bet, but is killed when the horse fights back! In the Adventure of the Copper Beeches a selfish father traps his daughter so he will not lose her money. His plan is foiled when his daughter's love rescues her.