Copies of the new Official Guidebook to the Cornwall and West Devon Mining Landscape World Heritage Sites are to be hidden for explorers to find during half-term week.

And the person who finds each book, worth £9.99, will be able to keep it and win more prizes. The book will be hidden on UNESCO designated World Heritage Sites at Luxulyan on Thursday, October 25 and at Caradon and Tamar Valley on Friday, October 26.