George's Marvellous Medicine. Illustrated by Quentin Blake. London: Cape, 1981. First Edition. Pp, 96. Blue cloth, spine lettered in gilt, publisher's pictorial dust jacket. A near fine copy. 'Some children may have thought that the Twits - the ghastly couple in Roald Dahl's last story - were about as horrible as people can get. But then they haven't yet met (George's) Grandma.'