Why the Nigel Hinton Novel is entitled buddy?

It seems you might be thinking of a different author than Nigel Hinton. There is no known Nigel Hinton novel titled "Buddy."

However, there are a couple of possibilities:

1. Typo or Misremembering: You might have misremembered the author's name or the book title. Perhaps it's "Buddy" by another author, or the title is something slightly different.

2. An Unpublished Work: It's possible Nigel Hinton has written a novel titled "Buddy" that has not been published yet.

If you could provide more details about the book or the author, I can help you find the correct information.