Please do not discuss (or even mention) current puzzles until after the solution is published. The moderators reserve the right to delete messages which do not have a valid Email address.
All in all IP: 78.32.181.23 Posted on November 19, 2016 at 07:09:00 PM by Nick
I didn't do the crossword - but, from all those years ago, I do remember reports of people all over England digging up areas of ground, stomping over ancient monuments, turning over stones etc. in a wild goose chase that the book lead you to.
So I think Poat got this 'spot on' as per the red herrings (and chaos) the puzzle (and book) lead to.