Lies. In many detective or mystery fictions, lies are often a crucial part of the plot. Characters may tell lies to cover up their secrets or mislead others.
Fate. This 4 - letter word often appears in fictional works. It can be used to drive the plot, such as when characters are trying to defy their fate or come to terms with it. For example, in Greek mythology - based fictions, many heroes struggle with their pre - determined fates.
One way is to read the novel carefully page by page. As you read, note down any three - letter sequences that seem like words. For example, in a description of a place, words like 'the' or 'and' might be among the three - letter words. Another method is to use a digital version of the novel and a search function. You can search for all three - letter combinations in the text, but this might bring up some false positives that are not actual words in the context of the novel.
One could be "luck". In a novel, a character's luck can be a major plot point. It could be good luck that leads them to success or bad luck that causes them problems.
Well, 'home' is a four - letter word that frequently appears in novels. It can represent a place of comfort, family, and belonging. Also, 'path' might be another one. It could symbolize a journey, either literal or metaphorical that a character is on in the novel.