Han-Shan, a Chinese poet from the 9th century, is still avidly read today - and now he has returned to Earth Announced on the book cover by an illustration from the works of Li Wei, a contemporary Chinese artist, Han arrives on a gorgeous pink cloud-chariot, dignified, amused - and wholly magical. 'Han Returns to Earth' follows Han's trail as he observes the earth and its inhabitants after an absence of a thousand years. Han is invisible - except...