Guys, just remember, if you get lucky, if you make a lot of money, if you get out and buy a lot of stuff--it's gonna break. You got your biggest, fanciest mansion in the world. It has air conditioning. It's got a pool. Just think of all the pumps that are going to go out. Or go to a yacht basin any place in the world. Nobody is smiling, and I'll tell you why. Something broke that morning. The generator's out; the microwave oven doesn't work. . . Things just don't mean happiness.
The fundamental difference between the mystery story and the ghost story is the fact that a mystery demands a solution for its effectiveness; a ghost story is necessarily unsolvable; the reader must be willing to accept the fact that nothing is proved.