David Almond marks 25 years of his extraordinary book, Skellig, with a walk from Seahouses to Bamburgh in Northumberland. As he tells Clare, it's a landscape that has long inspired his imagination and writing.

Skellig tells the tale of Michael, a young boy who befriends a magical creature - part owl, part angel – that needs Michael’s help to survive. The book has won multiple awards, been adapted for stage, film, radio and opera and translated into 40 languages.

As they walk, David tells Clare how his childhood in the north-east shaped both his character and writing, and discusses why walking is a necessary pleasure. The stretch of coastline they’re exploring is rich with historical, religious and cultural significance and the entire region has provided inspiration for David’s writing over the years.

They met at Seahouses Harbour and walked through sun, rain and wind to the most dominant man-made feature in the area - Bamburgh Castle.

Presenter: Clare Balding