"The rules of suspense are that you do know, and you just don't know when. In the Hitchcock rules of suspense, you are supposed to know that there is a bomb on the bus that might blow up, and then it becomes very tense - but if you don't know that there's a bomb and it just blows up, then it's just a surprise."

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The dead are never exactly seen by the living, but many people seem acutely aware of something changed around them. They speak of a chill in the air. The mates of the deceased wake from dreams and see a figure standing at the end of thier bed, or in a doorway, or boarding, phantomlike, a city bus.

— Alice Sebold