“When in doubt, have a man come through the door with a gun in his hand.” -- Raymond Chandler.Mr. Chandler uses this in reference to a scene or chapter where the author is stuck. Depending on the story, it doesn’t have to be a gun. Perhaps an old lover enters a room, or maybe the heroine finds a letter stuck in the back of a drawer, or maybe a body falls through the roof in the middle of dinner. The possibilities are endless. Stuck on a scene? Don’t know where to begin the next chapter? End the previous portion by introducing something new, something that shakes the character so severely that the reader must know what happens next.