Fictions in a novel are like the spices that flavor the story. They are the made - up scenarios, characters, and events that are carefully crafted to create a certain mood, theme, or message. For example, in a mystery novel, the fictional clues and red herrings are part of the fun. Lies, on the other hand, are more like false statements that have no real purpose within the integrity of the novel. A novel may be full of fictions, but it should be an honest piece of work in terms of not deceiving the reader with false information presented as fact. Fictions are a legitimate and important part of the art of novel - writing, while lies are not.
Fictions in a novel are the creative elements that form the story. For instance, in a historical novel, some dialogues or minor events might be fictionalized to make the story more engaging. Lies, however, are falsehoods with an intention to deceive. In a novel, if the author misrepresents something as fact when it's not, that could be considered a lie. But fictions are generally accepted as part of the creative license.