What happens to James Ryder at the end of The Adventure of the Blue Carbuncle?

At the end of "The Adventure of the Blue Carbuncle," James Ryder is confronted by Sherlock Holmes regarding the theft of the blue carbuncle. Rather than turning him in to the authorities, Holmes decides to let Ryder go, believing he has learned a valuable lesson from his actions. Ryder is filled with remorse and is given a chance to reform, as Holmes feels that punishing him would not benefit anyone. Thus, Ryder is allowed to escape justice, reflecting Holmes's belief in mercy and second chances.