‘Devoted Churchman Donald Maxwell RA’ was converted to Alfred Watkins’ ley theories. He wrote ‘topographical detective tales’ in the 1930s, and this article by Stephen Daniels includes one of his prints to illustrate one of the novels.
Here’s a direct link to the picture:
tate.org.uk/research/tateresearch/tatepapers/06autumn/images/daniels_fig9large.jpg
“From the wooded heights of Anstiebury Camp there ran invisible lines over hill and dale.”