The Colour of Magic: Discworld 1

The Colour of Magic is the first novel in Terry Pratchett's acclaimed Discworld series, of which some 20 million copies have been sold.

Description Twoflower was a tourist, the first ever seen on the Discworld.

Tourist, Rincewind decided, meant idiot.

Somewhere on the frontier between thought and reality exists the Discworld, a parallel time and place that might sound and smell very much like our own, but that looks completely different.

It plays by different rules.