This book explores and defends George Saunders'causal thesisthat successful stories are those that establish causation well. The book includes an in-depth discussion of causation's role in several different key craft elements of fiction writing and examines different theories of causation and their implications for causation in fiction. Other discussions include the role of causation in building suspense, character and causation, causation in dialogue and connections between fiction and counterfactuals (or hypotheticals). The book also considers a number of objections to the causal thesis and offers a reply.