Yes, it is common to indent fiction novels. Indenting paragraphs helps to visually separate different sections of the text. It makes the reading flow better and gives a clear indication where a new thought or part of the story begins. It's a traditional formatting style that also adds a certain aesthetic to the page layout.
Not always. In many cases, indenting paragraphs can make the text more visually appealing and organized. However, some styles might not require it. It often depends on the genre, publisher's guidelines, or your personal writing style.
Reo Lip could be seen as weird in ghost stories for several reasons. Maybe it's the combination of his actions, appearance, or the mysterious circumstances surrounding him.