Find out what each character cares most about in the world because then you will have discovered what’s at stake. Find a way to express this discovery in action, and then let your people set about finding or holding onto or defending whatever it is. Then you can take them from good to bad and back again, or from bad to good, or from lost to found. But something must be at stake or you will have no tension and your readers will not turn the pages. Think of a hockey player—there had better be a puck out there on the ice, or he is going to look pretty ridiculous.
