London, Gollancz, 1988. Proof. Paperback. A fine copy. More of a sampler than a Signed proof. by Pratchett and Kirby without inscription. 61pp. Includes an introduction to Discworld, not present in the book. The fifth Discworld novel, the third in the Rincewind run. Cover art by Josh Kirby [10481, Hyraxia Books].