As your hero and their team (if they have one) execute the plan, there should be a sense of impossibility in their endeavor. A Can this really work? moment. The plan should at first seem crazy. But then, as the team works together and makes progress, there’s a growing sense of accomplishment. Maybe some quirky secondary characters will “have their moment” here. Maybe some strange skill or device or idiosyncrasy you’ve set up earlier in the book will pay off. But little by little, the plan seems to be working.
