Imagine a newly-built car park near the Roman fort of Borcovicium on Hadrian’s Wall, and an imaginary meeting on 29 September 1938, the day of the Munich agreement. Through one of the entrances strolls a gangly, unshaven young man of thirty-one with a dirty shirt and an excited look. He is on annual leave from the Borough Treasurer’s office in Blackburn and has walked 120 miles to the Wall from Settle in Ribblesdale. This is Alfred Wainwright, twenty years before the Pictorial Guides to the Lakeland Fells (1955-66) made him famous. His first book is about this walk to the Wall in 1938.