Sign of four theme quotes Watch
The theme of fear can be represented through the descriptions of Jonathan Small and Tonga. For example when Small is referred to as "the wooden legged man" or when Small and Tonga are described as a "Villainous pairing" or when there is "no proof of existence" because it creates the impression of myths and legends like the story of Small and Tonga is something that creates fear because no one really knows if they're real and the idea of them is something that makes people feel fear. The fact that they are also "savages" creates fear because a savage was someone from a foreign island and based on the time era in which the book is set people didn't have knowledge of the wider world so a person from a foreign island was something quite intimidating and fearful for people.
Crime/Detection - "an automaton, a cold, calculating machine" about Holmes