Boone, Ill.   Tuesday, P.M. My dearest Louise: Louise, the goddamndest thing happened here about an hour ago. I was killing time here in the office trying to keep warm; was pushed back in the old swivel chair with my feet on the desk, as a matter of fact, when this husky stranger eased in. For several minutes I had been trying to decide where to go for lunch, unable to choose between chasing ...