“Entire civilisations have risen and fallen on the Silk Road leaving perilously little evidence of themselves,” the book, published by Speaking Tiger, says. For thousands of years, the history of the Silk Road has been a traveller’s history, of brief encounters in desert towns, snowbound passes and nameless forts. It was the conduit that first brought Buddhism, Christianity and Islam into China, and the site of much of the ‘Great Game’ between 19th-century empires.