Mark Pilkington writes: ‘In the mystic haze of late ’60s Britain, T.C. Lethbridge’s ideas would converge with the ley line theories of Alfred Watkins, giving birth to the ‘Earth Mysteries’ movement, and feeding the minds of New Wave psychogeographers Iain Sinclair, Peter Ackroyd (Hawksmoor), Alan Moore (From Hell), and others whose ideas subsequently flowed into the hauntological timestream