A strange and extrordinary book, a travel book about a walk across Sussex, but also a memoir interrupted by extended meditations on various subjects and historical characters. A sad, beautiful, hearfelt book, endlessly fascinating, almost mesmerising as the thoughts flow from the landscape to history to art to natural science, to lives lived at various points in the past. Mortality and transience hang over and run through the book like storm clouds and veins of ore, inescapable, no matter how fascinating the world or the far reaches of the mind and imagination.