I've never really heard anyone talk about this topic before. I imagine the correct answer ends up being "just do what you want", but I'm kind of curious if there are any people out there that have kind of hard & fast rules for chapter length. Like if you have separate chapters for the different events in the story, or maybe something else. I know one thing I tend to do, and I notice this with a lot of books I've read, is the chapters will all be of relatively similar length. Like, if the average chapter is 20 pages long, every chapter in that book won't deviate from that length by more than maybe 25% lets say. And almost always the chapter ends with some kind of plot twist (I write mysteries so it works).