This chapter opens with a discussion between the protagonist and the protagonist's uncle. The protagonist asks the uncle if he can help him solve the murder. The uncle says that the old man who originally planned the murder is about to retire, so the case has been dragged on. He suggests that the protagonist follow the lead of the diners at the resturant and catch the killer fish. He tells the protagonist that he can use this information as a "breakthrough" and "follow the lead" and catch "the big fish" behind the scenes