Memoirs of Sherlock Holmes The Greek Interpreter & The Naval Treaty (502-542)

In The Greek Interpreter, a man named Mr. Melas, the Greek interpreter, told a story to Mycroft Holmes, Sherlock Holmes' older brother. In this story, Melas was told by a man named Harold Latimer to go to a house and translate. On the way there Latimer blocked any way of Melas knowing where he was and threatened him if the translation went public. When he arrived at the house, Melas was rushed into a room with two other men. Latimer wanted Melas to translate and tell one of the men his demands of signing some papers. That man, named Kratides, refused to sign the papers which gave property to Latimer. Later Melas found out that a woman was involved with the property transfer and she even came to the room Melas was in. The woman's name was Sophy and Kratides' real name was Paul. After that, Melas was taken back into the cab and dropped off far from his house. When that happened, he went to Mycroft who told Sherlock to look into it. So, they put an advertisement up and find out where Sophy lives and Holmes took Watson and Mycroft. They also went to pick up Melas but found out that he has been taken. When they arrived at the house Melas described, they learned that it was abandoned, but found Melas and Kratides inside. However, Kratides was found dead because he refused to sign the papers. At the end of the story, it is learned that Latimer was stabbed to death.
In The Naval Treaty, Watson received a letter from an old friend telling that he needed help from him and Holmes, Someone had taken a naval treaty from his office when he stepped out. Watson's friend's name was Percy Phelps. His wife was a suspect but they did not find a treaty with her. Phelps had "brain fever" and was sick so he was in bed most of the time. By making observations, Holmes found out that the thief probably came by cab and visited some people. The unusual part about this case is that the treaty has not been sold yet but Phelps knew it would be soon if they don't find it. Later, at night, someone had tried to break into Phelps room at night. Phelps saw him with a knife but he ran away. Because this happened, Holmes decided to hide and watch the house and one day the same man came back. Holmes found that he went back to the room and opened a secret hatch in the floor and took out the treaty. So they caught the thief and Holmes literary served the treaty to Phelps for breakfast the next morning.