Ah! Sorry old chap. Anyway, there's an interesting one by Bruce Barrymore Halpenny, but I can't remember the proper title!
It's something like Ghost Stories, or Haunted Fields - I loaned my copy to some Judy, and never got it back. But it's a collection of allegedly true accounts about aviation-related hauntings mainly, as far as I recall, on airfields or crash sites in the UK, and makes for some interesting reading.
I do remember having first-hand experience of two of the places covered, before reading the book, and a friend, totally divorced from aviation, or the 'haunting' subject, got scared sh**less with an experience he had at a hotel, covered in the book, which used to be an Officer's Mess, although he didn't know this at the time.